Abstract:
Provided is a humidification and air cleaning apparatus. The humidification and air cleaning apparatus includes an air cleaner suctioning external air and generating filtered air by filtering suctioned external air; and an air washer separably placed on the air cleaner, supplied with filtered air from the air cleaner, and humidifying filtered air.

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
       [0001]    This U.S. non-provisional patent application claims priority under 35 U.S.C. §119 of U.S. Provisional Application No. 62/248,463, filed on Oct. 30, 2015, Korean Patent Application No. 10-2015-0156254, filed on Nov. 7, 2015, Korean Patent Application No. 10-2015-0185857, filed on Dec. 24, 2015, Korean Patent Application No. 10-2016-0037235, filed on Mar. 28, 2016, U.S. Provisional Application No. 62/355,118, filed on Jun. 27, 2016, Korean Patent Application No. 10-2016-0129313, filed on Oct. 6, 2016, the entire contents of which are hereby incorporated by reference. 
     
    
     BACKGROUND OF THE INVENTION 
       [0002]    The present invention disclosed herein relates to an apparatus for both humidification and air cleaning. 
         [0003]    Air conditioning apparatuses include air conditioners that control the temperature of air, air cleaners that remove foreign substances from air to maintain air cleanliness, humidifiers that increase humidity in the air, and dehumidifiers that reduce humidity in the air. 
         [0004]    Typical humidifiers are classified into a vibration type which atomizes water on a vibrating plate and discharges it into air and a natural evaporation type that evaporates water in a humidification filter. 
         [0005]    The natural evaporation type of humidifier is classified into a disc type of humidifier which rotates a disc using a driving force and allows water to naturally evaporate from the surface of the disc in the air and a humidification filter type of humidifier which allows water to naturally evaporate from a wet humidification medium by flowing air. 
         [0006]    In a typical humidifier, a portion of flowing air during the humidification process is filtered by a filter. 
         [0007]    However, since a typical humidifier is used only in a low humidity season and an air cleaner has no humidification function, a user needs to purchase both products. 
         [0008]    Also, since a typical humidifier has an air cleaning function as an additional function in addition to a humidification function as a main function, the air cleaning function is weak. 
         [0009]    Furthermore, there is a limitation in that a typical humidifier or air cleaner cannot separately operate the humidification or air cleaning function. 
       SUMMARY OF THE INVENTION 
       [0010]    The present invention provides a humidification and air cleaning apparatus which can separately operate a humidification function and an air cleaning function. 
         [0011]    The present invention also provides a humidification and air cleaning apparatus which allows a user to check water drops formed on a humidification flow passage with his/her eyes and to intuitively know the humidification state. 
         [0012]    The present invention also provides a humidification and air cleaning apparatus which includes an air wash module performing humidification and disposed in an air clean module performing air cleaning, and can supply filtered air of the air clean module to the air wash module through a connection flow passage. 
         [0013]    The present invention also provides a humidification and air cleaning apparatus in which filtering and humidification of air are performed until suctioned air is discharged and in which the flow direction of air is minimized. 
         [0014]    The present invention also provides a humidification and air cleaning apparatus which can sufficiently secure the flow rate by supplying filtered air in all directions of 360 degrees when filtered air is humidified. 
         [0015]    The present invention also provides a humidification and air cleaning apparatus in which filtered air is humidified while passing a water tank humidification medium disposed at an inlet of a humidification flow passage and in which filtered air is additionally humidified while passing a discharge humidification medium disposed at an outlet of the humidification flow passage. 
         [0016]    The present invention also provides a humidification and air cleaning apparatus which washes filtered air by scattering water drops when a humidification medium is wetted. 
         [0017]    The present invention also provides a humidification and air cleaning apparatus in which a humidification medium is disposed to be spaced from water of a water tank and can maintain a dry state when humidification mode does not operate. 
         [0018]    The objectives of the present invention are not limited to the above-mentioned objectives, and other objectives that are not mentioned will be clearly understood by persons skilled in the art from the following description. 
         [0019]    Embodiments of the present invention provide humidification and air cleaning apparatuses comprising: an air clean module suctioning external air and generating filtered air by filtering suctioned external air; and an air wash module separably placed on the air clean module, supplied with filtered air from the air clean module, and humidifying filtered air, wherein: the air clean module comprises: an intake flow passage suctioning air; a filtering flow passage connected to the intake flow passage, allowing air suctioned through the intake flow passage to be filtered, and allowing filtered air to flow therein; and a clean connection flow passage connected to the filtering flow passage and providing filtered air to the air wash module; the air wash module comprises: a humidification connection flow passage to which filtered air is provided; a humidification flow passage connected to the humidification connection flow passage and supplying moisture to filtered air in order to form humidified air; and a discharge flow passage connected to the humidification flow passage and discharging humidified air to the outside; and when the air wash module is placed on the air clean module, the humidification connection flow passage and the clean connection flow passage are connected to each other. 
         [0020]    In some embodiments, the filtering flow passage may be formed in upward and downward directions and external air flows from a lower side to an upper side; the humidification flow passage is formed in upward and downward directions and filtered air flows from a lower side to an upper side; and an air guide is disposed in at least one of the clean connection flow passage and the humidification connection flow passage to change a flow direction of filtered air. 
         [0021]    In some embodiments, the air wash module may further comprises a water tank forming at least a portion of the humidification flow passage and communicating with the humidification connection flow passage, and the air guide forms at least a portion of the clean connection flow passage, and guides filtered air to the humidification connection flow passage. 
         [0022]    In some embodiments, when the air wash module is placed on the air clean module, the air guide may be disposed to cover the water tank, and the air guide may guide filtered air in all directions of 360 degrees of the water tank, and filtered air guided by the air guide may be guided to the humidification flow passage. 
         [0023]    In some embodiments, the air wash module may further comprise an air wash inlet communicating with the humidification connection flow passage and guiding filtered air to the humidification flow passage, and when the air wash module is placed on the air clean module, the humidification flow passage and the clean connection flow passage are connected to each other through the air wash inlet. 
         [0024]    In some embodiments, the air wash module may further include a water tank storing water and forming the humidification flow passage; the air clean module has a water tank insertion space receiving at least a portion of the water tank; and when the water tank is inserted into the water tank insertion space and the air wash module is placed on the air clean module, the humidification flow passage and the clean connection flow passage may be connected to each other through the air wash inlet. 
         [0025]    In some embodiments, the air wash module may further include a water tank humidification medium spaced from water stored in the water tank, and the water tank humidification medium is disposed at the air wash inlet and provides moisture to filtered air flowing to the humidification flow passage through the air wash inlet when the water tank humidification medium is wetted by being supplied with water stored in the water tank. 
         [0026]    In some embodiments, the air wash module may further include a discharge humidification medium disposed between the humidification flow passage and the discharge flow passage, and the water tank humidification medium may provide moisture to filtered air flowing from the humidification flow passage to the discharge flow passage when the water tank humidification medium is wetted by being supplied with water stored in the water tank. 
         [0027]    In some embodiments, the air wash module may further include a water supply flow passage supplied with water and guiding supplied water to the humidification flow passage, and the water supply flow passage may be disposed separately from the discharge flow passage. 
         [0028]    In some embodiments, the discharge flow passage and the water supply flow passage may be disposed at an upper part of the air wash module, and the water supply flow passage may be disposed inside the discharge flow passage. 
         [0029]    In some embodiments, the air wash module may include: a water tank storing water; an air wash inlet communicating with the humidification connection flow passage and guiding filtered air to the humidification flow passage; a watering unit spraying water stored in the water tank; and a water tank humidification medium disposed at the air wash inlet, spaced from water stored in the water tank, and wetted by water sprayed from the watering unit, and when the water tank humidification medium is wetted, may provide moisture to filtered air flowing to the humidification flow passage through the air wash inlet. 
         [0030]    In some embodiments, the air wash module may further include a discharge humidification medium disposed between the humidification flow passage and the discharge flow passage, and the water tank humidification medium may provide moisture to filtered air flowing from the humidification flow passage to the discharge flow passage when the water tank humidification medium is wetted by water sprayed from the watering unit. 
         [0031]    In some embodiments, the air clean module may have a water tank insertion space receiving at least a portion of the water tank, and when the water tank is inserted into the water tank insertion space and the air wash module is placed on the air clean module, the humidification flow passage and the clean connection flow passage may be connected to each other through the air wash inlet. 
         [0032]    In some embodiments, the humidification and air cleaning apparatus may further include an air guide disposed in at least one of the clean connection flow passage and the humidification connection flow passage and changing a flow direction of filtered air. Here, when the air wash module is placed on the air clean module, the air guide may be disposed outside the water tank insertion space, may cover the water tank insertion space, and may guide filtered air to the inside of the water tank insertion space. 
         [0033]    In some embodiments, when the air wash module is placed on the air clean module, the air guide may be disposed to cover the water tank, and the air guide may guide filtered air in all directions of 360 degrees of the water tank, and filtered air guided by the air guide may be guided to the humidification flow passage. 
         [0034]    In some embodiments, the air wash inlet may be formed in all directions of 360 degrees, and the water tank humidification medium may be disposed to cover all directions of 360 degrees in which the air wash inlet is formed. 
         [0035]    In some embodiments, the air wash module may further include a water supply flow passage supplied with water and guiding supplied water to the humidification flow passage, and the water supply flow passage may be disposed separately from the discharge flow passage. 
         [0036]    In some embodiments, the discharge flow passage and the water supply flow passage may be disposed at an upper part of the air wash module, and the water supply flow passage may be disposed inside the discharge flow passage. 
         [0037]    In some embodiments, the air wash module may further include a top cover assembly in which the discharge flow passage and the water supply flow passage are formed; the discharge flow passage may be formed in all directions of 360 degrees along an edge of the top cover assembly, and the water supply flow passage is disposed at a center of the top cover assembly; and the discharge flow passage and the water supply flow passage may all communicate with the humidification flow passage. 
         [0038]    In some embodiments, the air clean module may further include an air blowing unit allowing air to flow and comprising an air blowing flow passage formed therein, and the air blowing flow passage may be disposed between the filtering flow passage and the humidification flow passage. 
         [0039]    Embodiments of the present invention provide humidification and air cleaning apparatuses including: an air clean module suctioning external air and generating filtered air by filtering suctioned external air; and an air wash module combined with the air clean module, supplied with filtered air from the air clean module, and humidifying filtered air, wherein: the air clean module comprises: an intake flow passage suctioning air; a filtering flow passage connected to the intake flow passage, allowing air suctioned through the intake flow passage to be filtered, and allowing filtered air to flow therein; and a clean connection flow passage connected to the filtering flow passage and providing filtered air to the air wash module; the air wash module comprises: a humidification connection flow passage to which filtered air is provided; a humidification flow passage connected to the humidification connection flow passage and supplying moisture to filtered air in order to form humidified air; and a discharge flow passage connected to the humidification flow passage and discharging humidified air to the outside; and the humidification connection flow passage and the clean connection flow passage are connected to each other. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0040]    The accompanying drawings are included to provide a further understanding of the present invention, and are incorporated in and constitute a part of this specification. The drawings illustrate exemplary embodiments of the present invention and, together with the description, serve to explain principles of the present invention. In the drawings: 
           [0041]      FIG. 1  is a perspective view illustrating a humidification and air cleaning apparatus according to a first embodiment of the present invention; 
           [0042]      FIG. 2  is an exploded perspective view of  FIG. 1 ; 
           [0043]      FIG. 3  is an exploded front view of  FIG. 1 ; 
           [0044]      FIG. 4  is an exploded cross-sectional view of  FIG. 3 ; 
           [0045]      FIG. 5  is a view illustrating an air flow of the humidification and air cleaning apparatus according to the first embodiment of the present invention; 
           [0046]      FIG. 6  is a view illustrating an air flow of the humidification and air cleaning apparatus shown in  FIG. 4 ; 
           [0047]      FIG. 7  is a view illustrating an air flow of the lower body shown in  FIG. 6 ; 
           [0048]      FIG. 8  is a view illustrating an air flow of the upper body shown in  FIG. 6 ; and 
           [0049]      FIG. 9  is a view illustrating an air flow of the air wash module shown in  FIG. 6 . 
       
    
    
     DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS 
       [0050]    Preferred embodiments of the present invention will be described below in more detail with reference to the accompanying drawings. The present invention may, however, be embodied in different forms and should not be constructed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art. 
         [0051]    Hereinafter, it will be described about an exemplary embodiment of the present invention in conjunction with the accompanying drawings. 
         [0052]    Advantages and features of the present invention, and implementation methods thereof will be clarified through following embodiments described with reference to the accompanying drawings. The present invention may, however, be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art. Further, the present invention is only defined by scopes of claims. Like reference numerals refer to like elements throughout. 
         [0053]    Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. 
         [0054]      FIG. 1  is a perspective view illustrating a humidification and air cleaning apparatus according to a first embodiment of the present invention.  FIG. 2  is an exploded perspective view of  FIG. 1 .  FIG. 3  is an exploded front view of  FIG. 1 .  FIG. 4  is an exploded cross-sectional view of  FIG. 3 . 
         [0055]    A humidification and air cleaning apparatus according to an embodiment of the present invention may include an air clean module  100  and an air wash module  200  disposed over the air clean module  100 . 
         [0056]    The air clean module  100  may take in and filter external air, and may provide filtered air to the air wash module  200 . The air wash module  200  may be supplied with filtered air, may perform humidification to provide moisture, and may discharge humidified air to the outside. 
         [0057]    The air wash module  200  may include a water tank  300  for storing water. The water tank  300  may be separable from the air clean module  100  when the air wash module  200  is separated. The air wash module  200  may be disposed over the air clean module  100 . 
         [0058]    A user can separate the air wash module  200  from the air clean module  100 , and can clean the air wash module  200  that is separated. A user may also clean the inside of the air clean module  100  from which the air wash module  200  is separated. When the air wash module  200  is separated, the upper surface of the air clean module  100  may be opened to a user. 
         [0059]    The air clean module  100  may include a filter assembly  10  described later, and may be cleaned after the filter assembly  10  is separated from a base body  110 . 
         [0060]    A user may supply water into the air wash module  200 . The air wash module  200  may have a water supply flow passage  109  formed therein to supply water from the outside to the water tank  300 . 
         [0061]    The water supply flow passage  109  may be configured to be separated from a discharge flow passage  107  from which air is discharged. The water supply flow passage  109  may be configured to supply water into the water tank  300  at any moment. For example, even when the air wash module  200  is operating, water can be supplied through the water supply flow passage. For example, even when the air wash module  200  is coupled to the air clean module  100 , water can be supplied through the water supply flow passage. For example, even when the air wash module  200  is decoupled from the air clean module  100 , water can be supplied through the water supply flow passage. 
         [0062]    The air clean module  100  and the air wash module  200  may be connected to each other through a connection flow passage  103 . Since the air wash module  200  is separable, the connection flow passage  103  may be distributedly disposed at the air clean module  100  and the air wash module  200 . Only when the air wash module  200  is placed over the air clean module  100 , the flow passage of the air wash module  200  and the flow passage of the air clean module  100  may communicate with each other through the connection flow passage  103 . 
         [0063]    The connection flow passage formed in the air clean module  100  may be defined as a clean connection flow passage  104 , and the connection flow passage formed in the air wash module  200  may be defined as a humidification connection flow passage  105 . 
         [0064]    The flow of air passing through the air clean module  100  and the air wash module  200  will be described in more detail later. 
         [0065]    Hereinafter, the air clean module  100  and the air wash module  200  will be described in more detail. 
         [0066]    The air clean module  100  may include a base body  110 , a filter assembly  10  that is disposed in the base body  110  and filters air, and an air blowing unit  20  that blows air. 
         [0067]    The air wash module  200  may include a water tank  300 , a watering unit  400 , a humidification medium  50 , a visual body  210 , and a top cover assembly  230 . The water tank  300  may store water for humidification, and may be detachably disposed over the air clean module  100 . The watering unit  400  may be disposed in the water tank  300 , and may spray water in the water tank  300 . The humidification medium  50  may be wetted with water sprayed from the watering unit  400 , and may provide moisture to flowing air. The visual body  210  may be coupled to the water tank  300 , and may be formed of a transparent material. The top cover assembly  230  may be detachably disposed over the visual body  210 , and may include a discharge flow passage  107  through which air is discharged and a water supply flow passage  109  through which water is supplied. 
         [0068]    The air clean module  100  may include an intake flow passage  101 , a filtering flow passage  102 , an air blowing flow passage  108 , and a clean connection flow passage  104  disposed therein. Air suctioned through the intake flow passage  101  may flow to the clean connection flow passage  104  via the filtering flow passage  102  and the air blowing flow passage  108 . 
         [0069]    The air wash module  200  may include a humidification connection flow passage  105 , a humidification flow passage  106 , a discharge flow passage  107 , and a water supply flow passage  109  disposed therein. 
         [0070]    When the air wash module  200  is placed over the air clean module  100 , the clean connection flow passage  104  of the air clean module  100  and the humidification connection flow passage  105  of the air wash module  200  may be connected to each other. 
         [0071]    Filtered air supplied through the humidification connection flow passage  105  of the air wash module  200  may be discharged into the indoor via the humidification flow passage  106  and the discharge flow passage  107 . The water supply flow passage  109  may be manufactured into a structure in which air is not discharged and only water is supplied while communicating with the humidification flow passage  106 . 
         [0072]    First, each configuration of the air clean module  100  will be described. 
         [0073]    The base body  110  may include an upper body  120  and a lower body  130 . The upper body  120  may be disposed on the lower body  130 , and the upper body  120  and the lower body  130  may be assembled. 
         [0074]    Air may flow into the base body  110 . 
         [0075]    The intake flow passage  101 , the filtering flow passage  102 , and the air blowing flow passage  108  may be disposed in the lower body  130 , and structures that define the intake flow passage  101 , the filtering flow passage  102 , and the air blowing flow passage may be disposed in the lower body  130 . 
         [0076]    A portion of the connection flow passage  103  may be disposed in the upper body  120 , and structures for guiding filtered air to the air wash module  200  and structures for supporting the air wash module  200  may be disposed in the upper body  120 . 
         [0077]    The base body  110  may include the lower body  130  defining the exterior thereof and having an inlet hole  110  formed in the undersurface thereof, and the upper body  120  defining the exterior thereof and coupled to the upper side of the lower body  130 . 
         [0078]    The filter assembly  10  may be detachably assembled in the base body  110 . 
         [0079]    The filter assembly  10  may provide the filtering flow passage  102 , and may filter external air. The filter assembly  10  may have a structure that is detachable from the base body  110  in a horizontal direction. The filter assembly  10  may be disposed so as to cross the flowing direction of air that flows upstream in a vertical direction. The filter assembly  10  may slide in a horizontal direction, and may filter air that flows upward in a vertical direction. The filter assembly  10  may be disposed in a horizontal direction, and may form the filtering flow passage  102  in a vertical direction. 
         [0080]    The filter assembly  10  may slide in a horizontal direction with respect to the base body  110 . 
         [0081]    The filter assembly  10  may include a filter housing  11  disposed in the lower body  130  and forming the filtering flow passage  102 , and a filter  14  separably coupled to the filter housing  11  and filtering air passing the filtering flow passage  102 . 
         [0082]    The filter housing  12  may communicate with the intake flow passage  101  at the lower side thereof, and may communicate with the air blowing flow passage  108  at the upper side thereof. Air suctioned through the intake flow passage  101  may flow to the air blowing flow passage  108  via the filtering flow passage  102 . 
         [0083]    The filter housing  12  may be opened at one side thereof in a direction crossing the filtering flow passage  102 . The filter  14  may be detachably coupled through the opened surface of the filter housing  12 . The opened surface of the filter housing  12  may be formed in a lateral direction. The opened surface of the filter housing  12  may be disposed on the outer surface of the lower body  130 . Accordingly, the filter  14  may be inserted through the side surface of the lower body  130 , and may be located inside the filter housing  12 . The filter  14  may be disposed to cross the filtering flow passage  102 , and may filter air passing the filtering flow passage  102 . 
         [0084]    The filter  14  may be an electric duct collecting filter that collects foreign substances in the air by electrifying the filter using applied power. The filter  14  may be formed of a material that collects foreign substances in the air through a filter medium. The filter  14  may be disposed in various structures. The scope of the inventive invention is not limited to the filtering method or the filter medium of the filter  14 . 
         [0085]    The filtering flow passage  102  may be disposed in the same direction as the main flowing direction of the humidification and air cleaning apparatus. In this embodiment, the filtering flow passage  102  may be disposed in a vertical direction, and may allow air to flow in the opposite direction to gravity. That is, the main flowing direction of the humidification and air cleaning apparatus may be formed so as to direct from bottom to top. 
         [0086]    The air blowing unit  20  may be disposed over the filter housing  12 . 
         [0087]    The upper side surface of the filter housing  12  may be opened, and air passing the filtering flow passage  102  may flow to the air blowing unit  20 . 
         [0088]    The air blowing unit  20  may generate flowing of air. The air blowing unit  20  may be disposed inside the base body  110 , and may allow air to flow from the lower side to the upper side. 
         [0089]    The air blowing unit  20  may include a blower housing  150 , a blower motor  22 , and a blower fan  24 . In this embodiment, the blower motor  22  may be disposed at an upper side, and the blower fan  24  may be disposed at a lower side. The motor shaft of the blower motor  22  may direct to bottom, and may be coupled to the blower fan  24 . 
         [0090]    The blower housing  150  may be disposed inside the base body  110 . The blower housing  150  may provide a flow passage of flowing air. The blower motor  22  and the blower fan  24  may be disposed in the blower housing  150 . 
         [0091]    The blower housing  150  may be disposed over the filter assembly  10 , and may be disposed under the upper body  120 . 
         [0092]    The blower housing  150  may form the air blowing flow passage  108  therein. The blower fan  24  may be disposed in the air blowing flow passage  108 . The air blowing flow passage  108  may connect the filtering flow passage  102  and the clean connection flow passage  104 . 
         [0093]    The blower fan  24  may be a centrifugal fan, and may suction air from the lower side thereof and discharge air to the outside in a radial direction. The blower fan  24  may discharge air to the upper side and the outside in a radial direction. The outer end of the blower fan  24  may be disposed to direct to the upper side in a radial direction. 
         [0094]    The blower motor  22  may be disposed over the blower fan  24  to minimize contact with flowing air. The blower motor  22  may be installed so as to be covered by the blower fan  24 . The blower motor  22  may not be located on the airflow passage by the blower fan  24 , and may not generate a resistance against air flowing by the blower fan  24 . 
         [0095]    The upper body  120  may include an upper outer body  128  forming the exterior of the base body and coupled to the lower body  130 , an upper inner body  140  disposed inside the upper outer body  128 , having the water tank  300  inserted therein, and providing the connection flow passage  103 , and an air guide  170  coupling the upper inner body  140  and the upper outer body  128  and guiding air to the water tank  300 . 
         [0096]    Since the upper body  120  is disposed to separate the connection flow passage and the water tank insertion space, water of the water tank  300  flowing into the connection flow passage can be minimized Particularly, since the connection flow passage is divided by the upper inner body  140  and disposed outside a space in which water is stored, water can be inhibited from flowing into the connection flow passage. 
         [0097]    The upper inner body  140  may be formed to be opened at the upper side thereof, and may receive the water tank  300 . The upper inner body  140  may form a portion of the clean connection flow passage  104  into which filtered air flows. 
         [0098]    The upper inner body  140  may have an upper inlet  121  formed therein and corresponding to an air wash inlet  31 . The upper inlet  121  may not be an essential component. It may be sufficient if the upper body  120  has a shape that exposes the air wash inlet  31  to the connection flow passage  103 . 
         [0099]    The air guide  170  may guide air supplied through the clean connection flow passage  104  to the upper inlet  121 . The air guide  170  may collect air rising along the outside of the base body  110  toward the inside. The air guide  170  may change the flowing direction of air flowing from the lower side to the upper side. However, the air guide  170  may minimize the flow resistance of air by minimizing the change angle of the flow direction of air. 
         [0100]    The air guide  170  may cover the outside of the upper inner body  140  360 degrees of a circumference of the upper inner body  140 . The air guide  170  may guide air to the water tank  300  in all directions of 360 degrees of a circumference of the water tank  300 . The air guide  170  may inwardly collect air guided along the outside of the lower body  130 , and may supply the collected air to the water tank  300 . Through this structure, the flow rate of air supplied to the water tank  300  can be sufficiently secured. 
         [0101]    Accordingly, the air guide  170  may include a guide part  172  formed in the flowing direction of air, and a change part  174  that is connected to the guide part  172  and changes the flow direction of guided air. 
         [0102]    The air guide  170  may form the connection flow passage  103 . 
         [0103]    The guide part  172  may be formed in the substantially same direction as the filtering flow passage  102 , and in this embodiment, may be formed in a vertical direction. The change part  174  may be formed in a direction crossing the filtering flow passage  102 , and in this embodiment, may be formed in a substantially horizontal direction. 
         [0104]    The change part  174  may be disposed at an upper side of the air guide  170 . The change part  174  may be connected to the guide part  172  through a curved surface. 
         [0105]    Although the change part  174  is formed in a horizontal direction, air passing the connection flow passage  103  may upwardly flow in a substantially oblique direction. The flow resistance of air can be reduced by allowing the change angle of the connection flow passage  103  and the filtering flow passage  102  to be similar to the straightly traveling direction. 
         [0106]    The lower end of the guide part  172  may be fixed to the upper outer body  128 . The upper end of the change part  174  may be fixed to the upper inner body  140 . 
         [0107]    A portion of the clean connection flow passage  104  may be formed outside the upper inner body  140 . The air guide  170  may form a portion of the clean connection flow passage  104 . Air passing the clean connection flow passage  104  may flow into the water tank  300  through the upper inlet  121  and the air wash inlet  31 . 
         [0108]    The upper inner body  140  may have a basket shape on the whole. The upper inner body  140  may have a circular shape in horizontal section, and the clean connection flow passage  104  may be formed in all directions of 360 degrees of a circumference of the upper inner body  140 . 
         [0109]    The air guide  170  may be a component for guiding filtered air to the clean connection flow passage  104 , and may be omitted in accordance with embodiments. The air guide  170  may combine the upper inner body  140  or the upper outer body  128 . 
         [0110]    The air guide  170  may be formed to cover the upper inner body  140 . Particularly, the air guide  170  may be formed to cover the upper inlet  121 , and may guide filtered air to the upper inlet  121 . When viewed from top, the air guide  170  may have a donut shape. 
         [0111]    In this embodiment, the upper end of the air guide  170  may adhere closely to the upper end of the upper inner body  140 . 
         [0112]    When viewed from top, the upper side surface of the air guide  170  may coincide with the upper side surface of the upper inner body  140 . In this embodiment, an upper inner body ring  126  may be disposed on the upper end of the upper inner body  140  to be coupled to or adhere closely to the air guide  170 . 
         [0113]    An inner body extension part  148  may be disposed to connect the upper inner body  140  and the upper inner body ring  126 . The inner body extension part  148  may be disposed in plurality. An upper inlet  121  may be formed between the inner body extension part  148  and the upper inner body ring  126 . 
         [0114]    The inner body extension part  148  may correspond to a water tank body extension part  380 . When the water tank  300  is placed, the water tank body extension part  380  may be located inside the inner body extension part  148 . The inner body extension part  148  and the water tank body extension part  380  may overlap each other inside and outside. 
         [0115]    The upper end of the air guide  170  may adhere closely to or be coupled to the upper inner body ring  126 . The lower end of the air guide  170  may adhere closely to or be coupled to the upper outer body  128 . 
         [0116]    Accordingly, air flowing through the clean connection flow passage  104  between the upper inner body  140  and the upper outer body  128  may be guided to the upper inlet  121 . 
         [0117]    The diameter of the upper inner body ring  126  and the diameter of the upper end of the air guide  170  may be the same as or similar to each other. The air guide  170  and the upper inner body ring may adhere closely to each other to prevent leakage of filtered air. The upper inner body ring  126  may be disposed inside the air guide  170 . 
         [0118]    A grip  129  may be formed on the upper outer body  128 . The air wash module  200  may be placed in the upper body, and the whole of the humidification and air cleaning apparatus can be lifted through the grip  129 . 
         [0119]    The upper inner body  140  may have the water tank insertion space  125  formed therein so as to receive the water tank  300 . 
         [0120]    The clean connection flow passage  104  may be disposed outside the upper inlet  121 , and the water tank insertion space  125  may be disposed inside the upper inlet  121 . Air flowing along the clean connection flow passage  104  may pass through the upper inlet  121 . When the water tank  300  is placed in the water tank insertion space  125 , filtered air passing through the upper inlet  121  may flow into the water tank  300 . 
         [0121]    Meanwhile, an outer visual body  214  may be coupled to the upper side of the upper body  120 . 
         [0122]    The outer visual body  214  may be a component of the visual body  210 , but in this embodiment, may be fixed to the upper body  120 . Unlike this embodiment, the outer visual body  214  may also be fixed to the air wash module  200 . Unlike this embodiment, the outer visual body  214  may be omitted. 
         [0123]    The outer visual body  214  may be fixed to the upper body  120 . In this embodiment, the outer visual body  214  may be coupled to the upper outer body  128 . The outer visual body  214  and the outer surface of the upper outer body  128  may form a continuous surface. 
         [0124]    The outer visual body  214  may be formed of a material through which a user can see the inside of the outer visual body  214 . The outer visual body  214  may be formed of a transparent or translucent material. 
         [0125]    A display module  160  may be disposed in at least one of the air clean module  100  or the air wash module  200  to display the operational state to a user. In this embodiment, the display module  160  may be disposed in the base body  110  to display the operational state of the humidification and air cleaning apparatus to a user. 
         [0126]    The display module  160  may be disposed inside the outer visual body  214 . The display module  160  may be disposed to adhere closely to the inner side surface of the outer visual body  214 . When viewed from top, the display module  160  may have a donut shape. The water tank  300  may be inserted into the display module  160 . 
         [0127]    The display module  160  may be supported by the outer visual body  214 . The inner edge of the display module  160  may be supported by the upper inner body ring  126 . The display module  160  may be disposed over the air guide  170 . The display module  160  may be manufactured integrally with a connector  260 . 
         [0128]    The display module  160  may be disposed over the air guide  170 . The display module  160  may be disposed between the upper outer body  128  and the upper inner body  140 . The display module  160  may cover the upper outer body  128  and the upper inner body  140  such that a user cannot see a gap between the upper outer body  128  and the upper inner body  140 . The inside and the outside of the display module  160  may be sealed to prevent water from permeating between the upper outer body  128  and the upper inner body  140 . 
         [0129]    The inside of the display module  160  may be supported by the upper inner body  140 , and the outside of the display module  160  may be supported by the outer visual body  218 . 
         [0130]    In this embodiment, the display  160  may have a ring shape. Unlike this embodiment, the display  160  may be formed into an arc shape. The surface of the display  160  may be formed of a material that can reflect light, or may be coated with a material that can reflect light. 
         [0131]    Accordingly, when water drops are formed on the visual body  210 , water drops formed on the visual body  210  may be projected onto or reflected by the surface of the display  160 . When the water drops formed on visual body  210  flows down, the same effect is also shown on the display  160 . 
         [0132]    This effect may give a visual stimulus to a user, and a user may intuitively recognize that humidification is being performed. The water drop image projected on the display  160  may give a refreshment feeling to a user, and may allow a user to know the humidification state. 
         [0133]    The upper side surface of the display  160  may be obliquely formed. The display  160  may be obliquely disposed toward a user. Accordingly, the inside of the display  160  may be high, and the outside thereof may be low. 
         [0134]    Hereinafter, each configuration of the air wash module  200  will be described. 
         [0135]    The air wash module  200  may increase humidity in the filtered air. The air wash module  200  may implement a rain view in the humidification flow passage  106 . The air wash module  200  may spray and circulate water in the water tank  300 . The air wash module  200  may change water into small-sized droplets, and may again wash filtered air through scattered droplets. When filtered air is washed through scattered droplets, humidification and filtering may be performed once again. 
         [0136]    The air wash module  200  may include the humidification connection flow passage  105 , the humidification flow passage  106 , the discharge flow passage  107 , and the water supply flow passage  109 . 
         [0137]    The air wash module  200  may include the water tank  300 , the watering unit  400 , the humidification medium  50 , the visual body  210 , the top cover assembly  230 , and a handle  180 . 
         [0138]    The handle  180  may be coupled to the visual body  210 , may rotate in the visual body  210 , and may be held in the visual body  210 . A user may simply lift up only the air wash module  200  through, and may separate the air wash module  200  from the air clean module  100 . 
         [0139]    The humidification connection flow passage  105  may be disposed outside the water tank  300 , and may guide air into the water tank  300 . The humidification connection flow passage  105  may be disposed outside the visual body  210 , and may guide air into the visual body  210 . 
         [0140]    The humidification connection flow passage  105  may be disposed at the outside of at least one of the water tank  300  and the visual body  210 , and may guide air into one of the water tank  300  and the visual body  210 . 
         [0141]    The discharge flow passage  107  may be disposed between the top cover assembly  230  and the visual body  210 . The discharge flow passage  107  may be disposed in at least one of the top cover assembly  230  and the visual body  210 . 
         [0142]    In this embodiment, the discharge flow passage  107  may be disposed at the outer edge of the top cover assembly  230 , and the water supply flow passage  109  may be disposed at the center of the inside of the top cover assembly  230 . 
         [0143]    In the humidification and air cleaning apparatus according to this embodiment, a power source may be connected to the air clean module  100 , and the air wash module  200  may be supplied with power through the air clean module  100 . 
         [0144]    Since the air wash module  200  has a structure separable from the air clean module  100 , the air clean module  100  and the air wash module  200  may be provided with a separable power supply structure. 
         [0145]    Since the air clean module  100  and the air wash module  200  are separably assembled through the upper body  120 , a connector  260  may be disposed in the upper body  120  to provide power for the air wash module  200 . 
         [0146]    The top cover assembly  230  of the air wash module  200  may be provided with a control part and a display which requires power. A top connector  270  may be disposed in the air wash module  200 , and may be separably connected to the connector  260 . The top connector  270  may be disposed in the top cover assembly  230 . 
         [0147]    In this embodiment, since the top cover assembly  230  is separable, the inner side surface of the visual body  210  or the inner side surface of the water tank  300  can be conveniently cleaned. 
         [0148]    The top cover assembly  230  may include the water supply flow passage  109  formed therein, and may form the discharge flow passage  107  with the visual body  210  in between. The top cover assembly  230  may be installed separably from the visual body  210 . The top cover assembly  230  may include the top connector  270  disposed therein and electrically connected to the connector  260 . 
         [0149]    When the top cover assembly  230  is placed, the top connector  270  may be disposed over the connector  260 . The top cover assembly  230  may be supplied with electricity from the connector  260  via the top connector  270 . 
         [0150]    A water level display part (not shown) may be disposed around the water supply flow passage  109  to display the water level of the water tank  300 . Thus, a user can check the water level of the water tank  300  when supplying water. By disposing the water level display part on the movement line of water supply, a user can be prevented from excessively supplying water, and the water tank  300  can be prevented from overflowing. 
         [0151]    The water level display part may be disposed in the top cover assembly  230 . The separable power supply structure of the top connector  270  and the connector  260  may achieve effective upper water supply. 
         [0152]    The water tank  300  may be separably placed in the upper body  120 . The watering unit  400  may be disposed inside the water tank  300 , and may rotate inside the water tank  300 . 
         [0153]    The water tank  300  may include a water tank body  320  storing water, an air wash inlet  31  formed at the side surface of the water tank body  320 , and a water tank body extension part  380  upwardly extending from the water tank body  320  and coupled to the visual body  210 . 
         [0154]    In this embodiment, the water tank body  320  may be formed into a cylindrical shape with an opened upper side. Unlike this embodiment, the water tank body  320  may be formed into various shapes. 
         [0155]    The water tank body extension part  380  may upwardly extend from the water tank  300 . The water tank body extension part  380  may form the air wash inlet  31 . The air wash inlet  31  may be formed between the water tank body extension parts  380 . 
         [0156]    The air wash inlet  31  may be formed in the side surface of the water tank body  320 . The air wash inlet  31  may be formed on the water tank body  320  in all directions of 360 degrees of a circumference of the water tank body  320 . The air wash inlet  31  may communicate with the humidification connection flow passage  105 . 
         [0157]    The water tank body extension part  380  may guide water flowing down from the inner side surface of the visual body  210  into the water tank  300 . The noise of dropping water can be minimized by guiding water flowing down from the visual body  210 . 
         [0158]    The water tank body extension part  380  may be coupled to the lower end of the visual body  210 . 
         [0159]    In this embodiment, the air wash inlet  31  may be formed by the configuration of the water tank body  320 . Unlike this embodiment, the air wash inlet  31  may also be formed by disposing the water tank body extension part  380  in the visual body  210 . Also unlike this embodiment, a portion of a plurality of water tank body extension parts  380  may be disposed in the water tank  300 , and other water tank body extension parts  380  may be disposed in the visual body  210  to configure the air wash inlet  31 . Unlike this embodiment, the air wash inlet  31  may also be formed in a separate configuration distinguished from the visual body  210  and the water tank  300 . Unlike this embodiment, the air wash inlet  31  may also be formed in the visual body  210  and in the water tank  300 . 
         [0160]    That is, the air wash inlet  31  may be disposed in at least one of the water tank  300  and the visual body  210 . The air wash inlet  31  may be formed by combining the water tank  300  and the visual body  210 . The air wash inlet  31  may be disposed in a separate configuration distinguished from the water tank  300  and the visual body  210 , and then the separate configuration may be disposed between the water tank  300  and the visual body  210 . The air wash inlet  31  may be formed by combination of the water tank  300  and the visual body  210 . 
         [0161]    The air wash inlet  31  may be disposed at the side of the air wash module  200 , and may be connected to the humidification flow passage  106 . The air wash inlet  31  may communicate or connect with the humidification connection flow passage  105 . 
         [0162]    The watering unit  400  may have a function of supplying water to the humidification medium  50 . The watering unit  400  may have a function of visualizing the humidification process. The watering unit  400  may have a function of implementing a rain view inside the air wash module  200 . 
         [0163]    The watering unit  400  may suction water inside the water tank  300  by rotating a watering housing  800 , may upwardly pump suctioned water, and then may spray pumped water toward the outside in a radial direction. The watering unit  400  may include the watering housing  800  that suctions water, upwardly pumps suctioned water, and then sprays pumped water toward the outside in a radiation direction. 
         [0164]    In this embodiment, the watering housing  800  may be rotated in order to spray water. Unlike this embodiment, water may also be sprayed using a nozzle instead of the watering housing. Water may be supplied to the humidification medium  50  by spraying water from the nozzle, and the rain view may be similarly implemented. According to embodiments, water may be sprayed from the nozzle, and the nozzle may be rotated. 
         [0165]    Water sprayed from the watering housing  800  may wet the humidification medium  50 . Water sprayed from the watering housing  800  may be sprayed toward at least one of the visual body  210  and the humidification medium  50 . 
         [0166]    Water sprayed toward the visual body  210  may implement a rain view. Water sprayed toward the humidification medium  50  may be used to humidify filtered air. The rain view may be implemented by spraying water toward the visual body  210 , and then water flowing down from the visual body  210  may be used to wet the humidification medium  50 . 
         [0167]    In this embodiment, a plurality of nozzles having different heights may be disposed on the watering housing  800 . Water discharged out of any one nozzle may form droplets on the inner side surface of the visual body  210  to implement a rain view, and water discharged out of another nozzle may wet the humidification medium  50  to be used for humidification. 
         [0168]    The watering housing  800  may spray water to the inner side surface of the visual body  210 , and sprayed water may flow down along the inner side surface of the visual body  210 . Droplets formed in a form of water drop may be formed on the inner side surface of the visual body  210 , and a user can see droplets through the visual body  210 . 
         [0169]    Particularly, water flowing down from the visual body  210  may wet the humidification medium  50  to be used for humidification. The humidification medium  50  may be wetted with water sprayed from the watering housing  800  and water flowing down from the visual body  210 . 
         [0170]    The visual body  210  may be coupled to the water tank  300 , and may be located over the water tank  300 . At least a portion of visual body  210  may be formed of a material through which a user can see the inside. 
         [0171]    A display module  160  may be disposed outside the visual body  210 . The display module  160  may be coupled to any one of the visual body  210  and the upper body  120 . 
         [0172]    The display module  160  may be disposed on a location where a user can observe a rain view. In this embodiment, the display module  160  may be disposed at the upper body  120 . 
         [0173]    When the air wash module  200  is placed, the outer surface of the visual body  210  may adhere closely to the display module  160 . At least a portion of the surface of the display module  160  may be formed of or coated with a material that reflects light. 
         [0174]    Droplets formed on the visual body  210  may also be projected onto the surface of the display module  160 . Accordingly, a user can observe the motion of droplets at both visual body  210  and display module  160 . 
         [0175]    The water tank  300  may include the air wash inlet  31  which is formed thereon and through which air passes. The air wash inlet  31  may be located between the connection flow passage  103  and the humidification flow passage  106 . The air wash inlet  31  may be an outlet of the connection flow passage  103 , and may be an inlet of the humidification flow passage  106 . 
         [0176]    Filtered air supplied from the air clean module  100  may flow into the air wash module  200  through the air wash inlet  31 . 
         [0177]    The humidification medium  50  may include a water tank humidification medium  51  disposed at the inlet of the humidification flow passage  106 , and a discharge humidification medium  55  disposed at the outlet of the humidification flow passage  106 . The outlet of the humidification flow passage  106  and the inlet of the discharge flow passage  107  may be connected to each other. Accordingly, the discharge humidification medium  55  may be disposed at the discharge flow passage  107 . 
         [0178]    Since the connection flow passage  103 , the humidification flow passage  106 , and the discharge flow passage  107  are not formed of structures such as duct, it may be difficult to clearly distinguish the boundaries thereof. However, the humidification flow passage  106  in which humidification is performed is defined as between the water tank humidification medium  51  and the discharge humidification medium  55 , the connection flow passage  103  and the discharge flow passage  107  may be naturally defined. 
         [0179]    The connection flow passage  103  may be defined as between the blower housing  150  and the water tank humidification medium  51 . The discharge flow passage  107  may be defined as after the discharge humidification medium  55 . 
         [0180]    In this embodiment, the water tank humidification medium  51  may be disposed at the air wash inlet  31  of the water tank  300 . 
         [0181]    The water tank humidification medium  51  may be located in at least one of the same plane, the outside, and the inside of the air wash inlet  31 . Since the water tank humidification medium  51  is wetted with water for humidification, it may be desirable that the water tank humidification medium  51  is located at the inside of the air wash inlet  31 . 
         [0182]    Water flowing down after wetting the water tank humidification medium  51  may be stored in the water tank  300 . Water flowing down after wetting the water tank humidification medium  51  may be configured so as not to flow out of the water tank  300 . 
         [0183]    Thus, the water tank humidification medium  51  may humidify filtered air passing through the air wash inlet  31 . 
         [0184]    Water that is naturally evaporated from humidification medium  50  may humidify filtered air. The natural evaporation means that water evaporates in a state where separated heat is not applied to water. As contact with air increases, as the flow velocity of air increases, as the pressure in the air decreases, the natural evaporation may be promoted. The natural evaporation may also be referred to as natural vaporization. 
         [0185]    The humidification medium  50  may promote the natural evaporation of water. In this embodiment, the humidification medium  50  may be wetted with water, but may not be immersed in the water tank  300 . 
         [0186]    Since disposed separately from water stored in the water tank  300 , the water tank humidification medium  51  and the discharge humidification medium  55  may not be always wet even though there is water stored in the water tank  300 . That is, the water tank humidification medium  51  and the discharge humidification medium  55  may become wet only during the operation of humidification mode, and the water tank humidification medium  51  and the discharge humidification medium  55  may be maintained at a dry state during the operation of air cleaning mode. 
         [0187]    The water tank humidification medium  51  may cover the air wash inlet  31 , and air may penetrate the water tank humidification medium  51  to flow into the water tank  300 . 
         [0188]    The discharge humidification medium  55  may be disposed at the outlet of the humidification flow passage  106  or at the inlet of the discharge flow passage  107 . 
         [0189]    In this embodiment, the discharge humidification medium  55  may be disposed so as to cover the upper part of the visual body  210 . The discharge humidification medium  55  may be placed on the visual body  210 . Unlike this embodiment, the discharge humidification medium  55  may be coupled to the undersurface of the top cover assembly  230 . 
         [0190]    The discharge humidification medium  55  may cover the discharge flow passage  107 , and humidified air may penetrate the discharge humidification medium  55  and then flow to the discharge flow passage 107 . 
         [0191]    On the other hand, while the separable structure of the air wash module and the air clean module has been described in this embodiment, the air wash module and the air clean module may have a combined structure in another embodiment, Also in the combined state of the air wash module and the air clean module, filtered air may be provided to the humidification flow passage through the humidification connection flow passage and the clean connection flow passage according to this embodiment. That is, the air flow passages according to this embodiment may propose an effective flow passage which can provide filtered air to the humidification flow passage. 
         [0192]    Hereinafter, the flow of air will be described with reference to the accompanying drawings. 
         [0193]    When the air blowing unit  20  operates, external air may flow into the base body  110  through the intake flow passage  101  formed at a lower side of the base body  110 . Air suctioned through the intake flow passage  101  may sequentially pass the air clean module  100  and the air wash module  200  while moving upward, and may be discharged to the outside through the discharge flow passage  107  formed at an upper side of the air wash module  200 . 
         [0194]    Air suctioned to the intake flow passage  101  may pass the filtering flow passage  102  of the filter assembly  10 , and the filter assembly  10  may filter external air. 
         [0195]    Air passing the filtering flow passage  102  may flow to the connection flow passage through the air blowing unit  20 . Air passing the filtering flow passage  102  may flow into the air blowing flow passage  108 . 
         [0196]    The filtered air may be pressurized by the blower fan  24  in the air blowing flow passage  108 , and then may flow to the clean connection flow passage  104 . 
         [0197]    Since the air blowing unit  20  is disposed next to the filtering flow passage  102 , the air blowing unit  20  may pressurize and blow filtered air. Through the arrangement relation of the filter assembly  10  and the air blowing unit, adherence of foreign substances like dust on the blower fan  24  can be minimized 
         [0198]    When the air blowing unit  20  is disposed at the front of the filtering flow passage  102 , external air may first contact the blower fan  24 , and thus the possibility that foreign substances adhere to the blower fan  24  may increase. When the blower fan  24  is contaminated with foreign substances, a user needs to periodically clean the blower fan  24 , and a structure for cleaning the blower fan  24  may be needed. 
         [0199]    Since the air blowing unit  20  according to this embodiment blows filtered air from which foreign substances are removed, a separate cleaning may not be needed. 
         [0200]    Also, since the air blowing unit  20  is disposed at the front of the humidification flow passage  106 , adherence of moisture on the surface of the blower fan  24  can be minimized When moisture adheres to the surface of the blower fan  24 , foreign substances may adhere to the surface of the blower fan  24  or molds grow on the blower fan  24 . 
         [0201]    Since the air blowing unit  20  is disposed at the rear of the filtering flow passage  102  and at the front of the humidification flow passage  106 , the contamination of the air blowing unit  20  can be minimized 
         [0202]    The connection flow passage  103  may include the clean connection flow passage  104  formed in the air clean module  100  and the humidification connection flow passage  105  formed in the air wash module  200 . 
         [0203]    When the air wash module  200  is placed on the upper body  120 , the clean connection flow passage  104  and the humidification connection flow passage  105  may be connected to each other. When the air wash module  200  is in a separated state, the clean connection flow passage  104  and the humidification connection flow passage  105  may be exposed to the outside. 
         [0204]    The clean connection flow passage  104  may be formed in the upper body  120 , and the humidification connection flow passage  105  may be formed in the air wash module  200 . 
         [0205]    The clean connection flow passage  104  and the humidification connection flow passage  105  may also be formed in a form of duct to form a clear flow passage. In this embodiment, the connection flow passage  103  may distributedly disposed in the structure of the upper body  120  and the structure of the water tank  300 . 
         [0206]    The connection flow passage  103  may also be formed using a configuration such as duct. However, when air is supplied into the water tank  300  through a structure such as duct, the flow resistance may significantly increase due to the duct, and it may be difficult to secure a sufficient flow rate. When the flow rate supplied into the water tank  300  is limited, RPM of the blower fan  24  needs to increase, and thus power consumption and noise may increase. 
         [0207]    In this embodiment, the connection flow passage  103  may provide air to the water tank  300  in all directions of  350  degrees, thereby securing a sufficient flow rate. 
         [0208]    Filtered air passing the air blowing flow passage  108  may flow into the clean connection flow passage  104  formed in the upper body  120 . The air guide  170  may be disposed in the clean connection flow passage  104  of the upper body  120  to minimize the change of the flow direction of filtered air. The air guide  170  may minimize the change angle of filtered air that flows. 
         [0209]    In this embodiment, since the upper inner body  140  forming the water tank insertion space  125  is disposed in the upper body  120 , the clean connection flow passage  104  may be directly connected to the air wash inlet  31 . 
         [0210]    Unlike this embodiment, when the height of the upper inner body  140  is small or zero, the outer wall of the water tank  300  may provide the humidification connection flow passage  105 . In other words, when there is only the bottom  141  of the upper inner body  140  and no side wall of the upper inner body  140 , the outside of the side wall of the water tank  300  may provide the humidification connection flow passage  105 , and the inner side of the air guide  170  may provide the clean connection flow passage  104 . Also, when the water tank  300  is placed on the bottom  141 , the connection flow passage  103  may be connected. 
         [0211]    In this embodiment, filtered air of the clean connection flow passage  104  may sequentially pass the upper inlet  121  and the air wash inlet  31 , and then may pass the water tank humidification medium  51  to flow into the humidification flow passage  106 . 
         [0212]    The humidification flow passage  106  may be a section in which moisture is supplied to filtered air. In this embodiment, the humidification flow passage  106  may be a flow passage or a space from the water tank humidification medium  51  to the discharge humidification medium  55 . 
         [0213]    In the humidification flow passage  106 , humidification may be performed through various paths. 
         [0214]    First, in a process where filtered air passes the water tank humidification medium  51 , moisture of the water tank humidification medium  51  may be naturally evaporated, and filtered air may be supplied with moisture. 
         [0215]    Second, filtered air may be supplied with moisture by water drops scattered from the watering unit  400 . 
         [0216]    Third, humidification may be performed by moisture that is evaporated in the water tank  300 . 
         [0217]    Fourth, also in a process where filtered air passes the discharge humidification medium  55 , water wetting the discharge humidification medium  55  may be naturally evaporated, and thus filtered air may be supplied with moisture. 
         [0218]    Thus, when passing the humidification flow passage  106 , filtered air may be supplied with moisture through various paths. 
         [0219]    Air passing the discharge humidification medium  55  may be exposed to the outside through the discharge flow passage  107 . 
         [0220]    Air that is filtered and humidified may be discharged through the discharge flow passage  107 . The discharge flow passage  107  may discharge air in all directions of 360 degrees with respect to the upper side and inclined direction. 
         [0221]    While this invention has been particularly shown and described with reference to preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. The preferred embodiments should be considered in descriptive sense only and not for purposes of limitation. Therefore, the scope of the invention is defined not by the detailed description of the invention but by the appended claims, and all differences within the scope will be construed as being included in the present invention. 
         [0222]    A humidification and air cleaning apparatus according to an exemplary embodiment of the present invention has at least one of the following effects. 
         [0223]    First, filtered air is generated in the filtered air, and the filtered air is supplied to perform humidification in the air wash module. Also, when a user wants, the air wash module can be separated from the air clean module. 
         [0224]    Second, scattering water drops can wash air passing the humidification flow passage. 
         [0225]    Third, the air guide can be disposed in the connection flow passage to guide filtered air to the humidification flow passage, and the change angle of air can be minimized through the air guide. Thus, the flow resistance of air can be minimized 
         [0226]    Fourth, the air clean module for filtering air and the air wash module for humidification of air can be separably configured, and only the air wash module that contacts water can be separated for cleaning. 
         [0227]    Fifth, a user can check water drops formed on the humidification flow passage with his/her eyes, and thus can intuitively recognize that humidification is being performed. 
         [0228]    Sixth, the flow direction of air can form a substantially straight line in the intake flow passage, the filtering flow passage, the humidification flow passage and the discharge flow passage, and the change of the flow direction of air can be minimized in the connection flow passage, thereby minimizing the flow resistance of air. 
         [0229]    Seventh, the humidification medium for humidifying filtered air may be spaced from water, and the humidification medium can be maintained at a dry state when humidification mode is not used. 
         [0230]    Eighth, the humidification mediums are disposed at both inlet and outlet of the humidification flow passage, and filtered air can be allowed to pass each humidification medium, thereby securing sufficient humidification. 
         [0231]    Ninth, since filtered air is supplied in all directions of 360 degrees of the humidification flow passage, the flow rate of air can be sufficiently secured. 
         [0232]    Tenth, when the watering unit disposed in the humidification flow passage operates, a rain view effect can be implemented as if it rains in the humidification flow passage, and a user can directly check the rain view with his/her eyes. 
         [0233]    Eleventh, when a rain view effect is implemented, a sound as if it actually rains can be created, thereby stabilizing the mind and body. 
         [0234]    Twelfth, since the discharge flow passage and the water supply flow passage are separated, water can be prevented from scattering to the outside together with discharged air even though water is supplied when humidification is performed. 
         [0235]    The effects of the present invention are not limited to the above; other effects that are not described herein will be clearly understood by the persons skilled in the art from the following claims. 
         [0236]    The above-disclosed subject matter is to be considered illustrative and not restrictive, and the appended claims are intended to cover all such modifications, enhancements, and other embodiments, which fall within the true spirit and scope of the present invention. Thus, to the maximum extent allowed by law, the scope of the present invention is to be determined by the broadest permissible interpretation of the following claims and their equivalents, and shall not be restricted or limited by the foregoing detailed description.