Patent Publication Number: US-2022221172-A1

Title: Gas exchange device

Description:
FIELD OF THE INVENTION 
     The present disclosure relates to a gas exchange device, and more particularly to a gas exchange device applied to filter a gas and equipped with functions of gas detection, gas purification and cleaning the gas in an activity space. 
     BACKGROUND OF THE INVENTION 
     In recent years, people pay more and more attention to the air quality around our daily lives. Particulate matter (PM), such as PM 1 , PM 2.5 , PM 10 , carbon dioxide, total volatile organic compounds (TVOC), formaldehyde and even the suspended particles, the aerosols, the bacteria, the viruses, etc. contained in the air are all exposed in the environment and might affect the human health, and even endanger the life seriously. It is worth noting that the air quality in the activity space has gradually attracted people&#39;s attention. Therefore, providing a gas exchange device capable of purifying and improving the air quality to prevent from breathing harmful gases in the activity space, monitoring the air quality in the activity space in real time, and purifying the air in the activity space quickly when the air quality is poor is an issue of concern developed in the present disclosure. 
     SUMMARY OF THE INVENTION 
     An object of the present disclosure is to provide a gas exchange device for filtering a gas. The gas exchange device includes a gas-intake channel having a gas-intake-channel inlet and a gas-intake-channel outlet; a gas-exhaust channel disposed at one side the gas-intake channel and including a gas-exhaust-channel inlet and a gas-exhaust-channel outlet; a purification unit disposed in the gas-intake channel for filtering the gas passing through the gas-intake channel; a gas-intake guider disposed between the gas-intake-channel inlet and the purification unit for guiding and transporting the gas from the gas-intake channel inlet to the gas-intake-channel outlet; a gas-exhaust guider disposed in the gas-exhaust channel near the gas-exhaust-channel outlet for guiding and transporting the gas from the gas-exhaust-channel inlet to the gas-exhaust-channel outlet; a driving controller disposed in the gas-intake channel near the gas-intake guider for controlling the enablement and disablement of the purification unit, the gas-intake guider and the gas-exhaust guider; and a gas detection main body disposed in the gas-intake channel near the gas-intake-channel inlet for detecting the gas introduced through the gas-intake-channel inlet and generating detection data. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The above contents of the present disclosure will become more readily apparent to those ordinarily skilled in the art after reviewing the following detailed description and accompanying drawings, in which: 
         FIG. 1  is a schematic view illustrating a gas exchange device according to an embodiment of the present disclosure; 
         FIG. 2A  is a schematic view illustrating a gas detection main body of the gas exchange device according to the embodiment of the present disclosure; 
         FIG. 2B  is a schematic view illustrating the gas detection main body of the gas exchange device according to the embodiment of the present disclosure from another perspective angle; 
         FIG. 2C  is an exploded view illustrating the gas detection main body of the gas exchange device according to the embodiment of the present disclosure 
         FIG. 3A  is a schematic front view illustrating a base of the gas detection main body in  FIG. 2C ; 
         FIG. 3B  is a schematic rear view illustrating the base of the gas detection main body in  FIG. 2C ; 
         FIG. 4  is a schematic view illustrating a laser component and a sensor received within the base of the gas detection main body in  FIG. 2C ; 
         FIG. 5A  is a schematic exploded view illustrating the combination of the piezoelectric actuator and the base of the gas detection main body in  FIG. 2C ; 
         FIG. 5B  is a schematic perspective view illustrating the combination of the piezoelectric actuator and the base of the gas detection main body in  FIG. 2C ; 
         FIG. 6A  is a schematic exploded front view illustrating the piezoelectric actuator of the gas detection main body in  FIG. 2C ; 
         FIG. 6B  is a schematic exploded rear view illustrating the piezoelectric actuator of the gas detection main body in  FIG. 2C ; 
         FIG. 7A  is a schematic cross-sectional view illustrating the piezoelectric actuator of the gas detection main body in  FIG. 6A  accommodated in the gas-guiding-component loading region according to the embodiment of the present disclosure; 
         FIGS. 7B and 7C  schematically illustrate the operation steps of the piezoelectric actuator of  FIG. 7A ; 
         FIGS. 8A to 8C  schematically illustrate gas flowing paths of the gas detection main body in  FIG. 2B  from different angles; and 
         FIG. 9  schematically illustrates a light beam path emitted from the laser component of the gas detection main body in  FIG. 2C . 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     The present disclosure will now be described more specifically with reference to the following embodiments. It is to be noted that the following descriptions of preferred embodiments of this invention are presented herein for purpose of illustration and description only. It is not intended to be exhaustive or to be limited to the precise form disclosed. 
     Please refer to  FIG. 1 . The present disclosure provides a gas exchange device  2  for filtering a gas including a gas-intake channel  21 , a gas-exhaust channel  22 , a purification unit  23 , a gas-intake guider  24   a , a gas-exhaust guider  24   b , a driving controller  25  and a gas detection main body  1   a . In an embodiment, the gas-intake channel  21  includes a gas-intake-channel inlet  21   a  and a gas-intake-channel outlet  21   b . The gas-exhaust channel  22  is disposed at one side of the gas-intake channel  21  and includes a gas-exhaust-channel inlet  22   a  and a gas-exhaust-channel outlet  22   b . The purification unit  23  is disposed within the gas-intake channel  21  for filtering the gas passing through the gas-intake channel  21 . The gas-intake guider  24   a  is disposed between the gas-intake-channel outlet  21   b  and the purification unit  23  for guiding and transporting the gas from the gas-intake-channel inlet  21   a  to the gas-intake-channel outlet  21   b . The gas-exhaust guider  24   b  is disposed within the gas-exhaust channel  22  near the gas-exhaust-channel outlet  22   b  for guiding and transporting the gas from the gas-exhaust-channel inlet  22   a  to the gas-exhaust-channel outlet  22   b . The driving controller  25  is provided for controlling the enablement and the disablement of the purification unit  23 , the gas-intake guider  24   a  and the gas-exhaust guider  24   b . The gas detection main body  1   a  is disposed within the gas-intake channel  21  near the gas-intake-channel inlet  21   a  for detecting the flow-in gas through the gas-intake-channel inlet  21   a  and generating detection data. The gas-intake-channel outlet  21   b  and the gas-exhaust-channel inlet  22   a  are disposed in the same first space A. The first space A can be any one of an indoor space, an in-car space, a room space and an enclosed space. The gas-intake-channel inlet  21   a  and the gas-exhaust-channel outlet  22   b  are disposed in a second space B respectively. The second space B is any one of an outdoor space, a space outside a car, a space outside a room, and an open space. 
     In an embodiment of the present disclosure, the gas exchange device  2  for filtering a gas includes a gas-intake channel  21 , a gas-exhaust channel  22 , a purification unit  23 , a gas-intake guider  24   a , a gas-exhaust guider  24   b , a driving controller  25  and a gas detection main body  1   a . The gas-intake channel  21  includes a gas-intake-channel inlet  21   a  and a gas-intake-channel outlet  21   b . The gas-intake-channel inlet  21   a  is disposed in a second space B and the gas-intake-channel outlet  21   b  is disposed in a first space A. The gas-exhaust channel  22  is disposed at one side of the gas-intake channel  21  and includes a gas-exhaust-channel inlet  22   a  and a gas-exhaust-channel outlet  22   b . The gas-exhaust-channel inlet  22   a  is disposed in the first space A and the gas-exhaust-channel outlet  22   b  is disposed in the second space B. The first space A and the second space B are comparted by a space boundary S-S. Notably, the gas-intake channel  21  and the gas-exhaust channel  22  are illustrated in  FIG. 1  in the relationship of upper and lower, but the present disclosure is not limited thereto. The gas-intake channel  21  and the gas-exhaust channel  22  also can be arranged to be closely adjacent to each other or separated from each other, as long as the gas-intake-channel outlet  21   b  of the gas-intake channel  21  and the gas-exhaust-channel inlet  22   a  of the gas-exhaust channel  22  are disposed in the same space (the first space A, namely the activity space). The gas-intake-channel outlet  21   b  and the gas-exhaust-channel inlet  22   a  are disposed in the same first space A, which is anyone of an indoor space, a car space, a room space and an enclosed space. The gas-intake-channel inlet  21   a  and the gas-exhaust-channel outlet  22   b  are respectively disposed in the same second space B, which is any one of an outdoor space, a space outside a car, a space outside a room, and an open space. The gas exchange device  2  is disposed between the first space A and the second space B. Take a room as an example, in which the first space A is the room space and also the activity space, and the second space B is the space outside the room. The gas-intake-channel outlet  21   b  of the gas-intake channel  21  and the gas-exhaust-channel inlet  22   a  of the gas-exhaust channel  22  are both disposed in the room space, and the gas-intake-channel inlet  21   a  of the gas-intake channel  21  and the gas-exhaust-channel outlet  22   b  of the gas-exhaust channel  22  are both disposed in the space outside the room. 
     Notably, the gas-intake-channel inlet  21   a  of the gas-intake channel  21  and the gas-exhaust-channel outlet  22   b  of the gas-exhaust channel  22  also can be disposed in different second spaces B. Take a room as example, in which the first space A is the room space and the second space B is the space outside the room or an open space. The gas-intake-channel outlet  21   b  of the gas-intake channel  21  and the gas-exhaust-channel inlet  22   a  of the gas-exhaust channel  22  are both disposed in the room space (the first space A, namely the activity space). The gas-intake-channel inlet  21   a  of the gas-intake channel  21  is disposed in the space outside the room (the second space B), but the gas-exhaust-channel outlet  22   b  of the gas-exhaust channel  22  is disposed in the open space (the second space B). The gas is introduced into the gas-intake channel  21  through the gas-intake-channel inlet  21   a  from the space outside the room (where is outside the room but inside the house, namely the second space B), guided to the room space (the first space A, namely the activity space) through the gas-intake-channel outlet  21   b , guided into the gas-exhaust channel  22  through the gas-exhaust-channel inlet  22   a , and then discharged to the open space (where is outside the house, the second space B) through the gas-exhaust-channel outlet  22   b , but not limited thereto. The second space B for disposing the gas-intake-channel inlet  21   a  and the gas-exhaust-channel outlet  22   b  can be adjusted depending on the practical demands. 
     The purification unit  23 , disposed in the gas-intake channel  21 , is used for filtering the gas passing through the gas-intake channel  21 . The purification unit  23  includes a first high efficiency particulate air filter screen  23   a . The first high efficiency particulate air filter screen  23   a  is coated with a cleansing factor containing chlorine dioxide to inhibit viruses and bacteria in the gas. The first high efficiency particulate air filter screen  23   a  is coated with an herbal protective layer extracted from ginkgo and Japanese  Rhus chinensis  to form an herbal protective anti-allergic filter, so as to resist allergy effectively and destroy a surface protein of influenza virus. The first high efficiency particulate air filter screen  23   a  is coated with a silver ion to inhibit viruses and bacteria in the gas. The purification unit  23  includes a photo-catalyst unit  23   b  combined with the first high efficiency particulate air filter screen  23   a . The purification unit  23  includes a photo-plasma unit  23   c  combined with the first high efficiency particulate air filter screen  23   a . The purification unit  23  includes a negative ionizer  23   d  combined with the first high efficiency particulate air filter screen  23   a . The purification unit  23  includes a plasma ion unit  23   e  combined with the first high efficiency particulate air filter screen  23   a . The purification unit  23  is able to reduce the value of particulate matter (PM 2.5 ) to less than 10 μg/m 3  in the first space A. The purification unit  23  is able to reduce the content of carbon monoxide (CO) to less than 35 ppm in the first space A. The purification unit  23  is able to reduce the content of carbon dioxide (CO 2 ) to less than 1000 ppm in the first space A. The purification unit  23  is able to reduce the content of ozone (O 3 ) to less than 0.12 ppm in the first space A. The purification unit  23  is able to reduce the content of sulfur dioxide (SO 2 ) to less than 0.075 ppm in the first space A. The purification unit  23  is able to reduce the content of nitrogen dioxide (NO 2 ) to less than 0.1 ppm in the first space A. The purification unit  23  is able to reduce the value of lead (Pb) to less than 0.15 μg/m 3  in the first space A. The purification unit  23  is able to reduce the content of total volatile organic compounds (TVOC) to less than 0.56 ppm in the first space A. The purification unit  23  is able to reduce the content of formaldehyde (HCHO) to less than 0.08 ppm in the first space A. The purification unit  23  is able to reduce the amount of bacteria to less than 1500 CFU/m 3  in the first space A. The purification unit  23  is able to reduce the amount of fungi to less than 1000 CFU/m 3  in the first space A. 
     The above-mentioned purification unit  23  disposed in the gas-intake channel  21  can be implemented in the combination of various embodiments. For example, the purification unit  23  includes a first high efficiency particulate air (HEPA) filter screen  23   a . When the gas is introduced into the gas-intake channel  21  by the gas-intake guider  24   a , the gas is filtered through the first high efficiency particulate air filter screen  23   a  to adsorb the chemical smoke, bacteria, dust particles and pollen contained in the gas to achieve the effects of filtering and purifying the gas introduced into the gas exchange device  2 . In some embodiments, the first high efficiency particulate air filter screen  23   a  is coated with a cleansing factor containing chlorine dioxide to inhibit viruses and bacteria contained in the gas introduced by the gas exchange device  2 . In the embodiment, the first high efficiency particulate air filter screen  23   a  is coated with a cleansing factor containing chlorine dioxide to inhibit viruses, bacteria, influenza A virus, influenza B virus, enterovirus or norovirus in the gas outside the gas exchange device  2 . The inhibition rate can reach more than 99%. It is helpful of reducing the cross-infection of viruses. In other embodiments, the first high efficiency particulate air filter screen  23   a  is coated with an herbal protective layer extracted from ginkgo and Japanese  Rhus chinensis  to form an herbal protective anti-allergic filter, so as to resist allergy effectively and destroy a surface protein of influenza virus, such as H1N1 influenza virus, in the gas introduced by the gas exchange device  2  and passing through the first high efficiency particulate air filter screen  23   a . In some other embodiments, the first high efficiency particulate air filter screen  23   a  is coated with a silver ion to inhibit viruses and bacteria contained in the gas introduced from the outside of the gas exchange device  2 . 
     In an embodiment, the purification unit  23  includes a photo-catalyst unit  23   b  combined with the first high efficiency particulate air filter screen  23   a . The photo-catalyst unit  23   b  includes a photo-catalyst and an ultraviolet lamp. The photo-catalyst is irradiated with the ultraviolet lamp to decompose the gas introduced by the gas exchange device  2  for filtering and purifying the gas. In the embodiment, the photo-catalyst and the ultraviolet lamp are disposed in the gas-intake channel  21 , respectively, and spaced apart from each other at a distance. When the gas is introduced from the second space B into the gas-intake channel  21  by the gas-intake guider  24   a  of the gas exchange device  2 , the photo-catalyst is irradiated by the ultraviolet lamp to convert light energy into chemical energy, thereby decomposes harmful gases and disinfects bacteria contained in the gas, so as to achieve the effects of filtering and purifying the introduced gas. 
     In an embodiment, the purification unit  23  includes a photo-plasma unit  23   c  combined with the first high efficiency particulate air filter screen  23   a . The photo-plasma unit  23   c  includes a nanometer irradiation tube. The gas introduced by the gas exchange device  2  from the second space B is irradiated by the nanometer irradiation tube to decompose volatile organic gases contained in the gas and purify the gas. In the embodiment, the nanometer irradiation tube is disposed in the gas-intake channel  21 . When the gas of the second space B is introduced into the gas-intake channel  22  by the gas-intake guider  24   a  of the gas exchange device  2 , the gas is irradiated by the nanometer irradiation tube, thereby decomposes oxygen molecules and water molecules contained in the gas into high oxidizing photo-plasma, which is an ion flow capable of destroying organic molecules. In that, volatile formaldehyde, volatile toluene and volatile organic compounds (VOC) contained in the gas are decomposed into water and carbon dioxide, so as to achieve the effects of filtering and purifying the introduced gas. 
     In an embodiment, the purification unit  23  includes a negative ionizer  23   d  combined with the first high efficiency particulate air filter screen  23   a . The negative ionizer  23   d  includes at least one electrode wire, at least one dust collecting plate and a boost power supply device. When a high voltage is discharged through the electrode wire, the suspended particles contained in the gas introduced by the gas exchange device  2  from the second space B are attached to the dust collecting plate, so as to filter and purify the gas. In the embodiment, the at least one electrode wire and the at least one dust collecting plate are disposed within the gas-intake channel  21 . When the at least one electrode wire is provided with a high voltage by the boost power supply device to discharge, the dust collecting plate carries negative charge. When the gas is introduced into the gas-intake channel  21  from the second space B by the gas-intake guider  24   a  of the gas exchange device  2 , the at least one electrode wire discharges to make the suspended particles in the gas carrying positive charge and adhere to the dust collecting plate carrying negative charge, so as to achieve the effects of filtering and purifying the introduced gas. 
     In an embodiment, the purification unit  23  includes a plasma ion unit  23   e  combined with the first high efficiency particulate air filter screen  23   a . The plasma ion unit  23   e  includes a first electric-field protection screen, an adhering filter screen, a high-voltage discharge electrode, a second electric-field protection screen and a boost power supply device. The boost power supply device provides a high voltage to the high-voltage discharge electrode to discharge and form a high-voltage plasma column with plasma ion, so that the plasma ion of the high-voltage plasma column decomposes viruses or bacteria contained in the gas introduced by the gas exchange device  2  from the second space B. In the embodiment, the first electric-field protection screen, the adhering filter screen, the high-voltage discharge electrode and the second electric-field protection screen are disposed within the gas-intake channel  21 . The adhering filter screen and the high-voltage discharge electrode are located between the first electric-field protection screen and the second electric-field protection screen. As the high-voltage discharge electrode is provided with a high voltage by the boost power supply device to charge, a high-voltage plasma column with plasma ion is formed. When the gas is introduced into the gas-intake channel  21  from the second space B by the gas-intake guider  24   a  of the gas exchange device  2 , oxygen molecules and water molecules contained in the gas are decomposed into positive hydrogen ions (H + ) and negative oxygen ions (O 2− ) through the plasma ion. The substances attached with water molecules around the ions are adhered on the surface of viruses and bacteria and converted into OH radicals with extremely strong oxidizing power, thereby removing hydrogen (H) from the protein on the surface of viruses and bacteria, and thus decomposing (oxidizing) the protein, so as to filter the introduced gas and achieve the effects of filtering and purifying the gas. 
     Notably, the purification unit  23  can only include the first high efficiency particulate air filter screen  23   a , or includes the first high efficiency particulate air filter screen  23   a  combined with any one of the photo-catalyst unit  23   b , the photo-plasma unit  23   c , the negative ionizer  23   d  and the plasma ion unit  23   e . In an embodiment, the first high efficiency particulate air filter screen  23   a  is combined with any two of the photo-catalyst unit  23   b , the photo-plasma unit  23   c , the negative ionizer  23   d  and the plasma ion unit  23   e . Alternatively, the first high efficiency particulate air filter screen  23   a  is combined with any three of the photo-catalyst unit  23   b , the photo-plasma unit  23   c , the negative ionizer  23   d  and the plasma ion unit  23   e . In one further embodiment, the first high efficiency particulate air filter screen  23   a  is combined with all of the photo-catalyst unit  23   b , the photo-plasma unit  23   c , the negative ionizer  23   d  and the plasma ion unit  23   e.    
     In addition, notably, without an increment of new pollutants in the first space A, after purification for a period of time, the purification unit  23  is able to reduce the value of PM 2.5  to less than 10 μg/m 3 , the carbon monoxide (CO) content to less than 35 ppm, the carbon dioxide (CO 2 ) content to less than 1000 ppm, the ozone (O 3 ) content to less than 0.12 ppm, the sulfur dioxide (SO 2 ) content to less than 0.075 ppm, the nitrogen dioxide (NO 2 ) content to less than 0.1 ppm, the value of lead (Pb) to less than 0.15 μg/m 3 , the total volatile organic compounds (TVOC) content to less than 0.56 ppm, the formaldehyde (HCHO) content to less than 0.08 ppm, the amount of bacteria to less than 1500 CFU/m 3 , and the amount of fungi to less than 1000 CFU/m 3 , thereby the first space A becomes an activity space with good air quality. 
     The gas-intake guider  24   a  is disposed between the gas-intake-channel outlet  21   b  and the purification unit  23  for guiding and transporting the gas from the gas-intake-channel inlet  21   a  to the gas-intake-channel outlet  21   b . The gas-exhaust guider  24   b  is disposed within the gas-exhaust channel  22  near the gas-exhaust-channel outlet  22   b  for guiding and transporting the gas from the gas-exhaust-channel inlet  22   a  to the gas-exhaust-channel outlet  22   b . An exported airflow rate of the gas-intake guider  24   a  has a range of 200˜1600 CADR (Clean Air Output Ration) and the gas is further filtered by the purification unit  23  for providing a cleaner gas. An exported airflow rate of the gas-exhaust guider  24   b  has a range of 200˜1600 CADR (Clean Air Output Ration) for transporting the gas. In an embodiment, the gas-intake guider  24   a  is an air-conditioner capable of adjusting the temperature and the humidity of the first space A. 
     Preferably but not exclusively, the exported airflow rate of the gas-intake guider  24   a  and the gas-exhaust guider  24   b  of the gas exchange device  2  is 800 CADR (Clean Air Output Ration), but not limited thereto. In some other embodiments, the exported airflow rate of the gas-intake guider  24   a  and the gas-exhaust guider  24   b  is ranged between 200 and 1600 CADR (Clean Air Output Ration). In some further embodiments, the respective exported airflow rates of the gas-intake guider  24   a  and the gas-exhaust guider  24   b  can be different, and the respective amounts of the gas-intake guider  24   a  and the gas-exhaust guider  24   b  can be more than one. Notably, the gas-intake guider  24   a  is an air-conditioner capable of adjusting the temperature and the humidity of the first space A, but not limited thereto. The gas-intake guider  24   a  also can have the same function with the gas-exhaust guider  24   b.    
     The gas detection main body  1   a  is disposed within the gas-intake channel  21  near the gas-intake-channel inlet  21   a  for detecting the flow-in gas from the gas-intake-channel inlet  21   a  and generating detection data. The detection data refers to data selected from the group consisting of particulate matter (PM 1 , PM 2.5  and PM 10 ), carbon monoxide (CO), carbon dioxide (CO 2 ), ozone (O 3 ), sulfur dioxide (SO 2 ), nitrogen dioxide (NO 2 ), lead (Pb), total volatile organic compounds (TVOC), formaldehyde (HCHO), bacteria, virus, temperature, humidity and a combination thereof. Notably, the gas detection main body  1   a  includes a wireless multiplexing communication module, such as a Wi-Fi module, for wirelessly communicating with the driving controller  25 , but not limited thereto. The gas detection main body  1   a  also can be implemented to execute a wired communication. 
     The gas detection main body  11  illustrated in  FIGS. 2A to 2C ,  FIGS. 3A to 3B ,  FIG. 4  and  FIGS. 5A to 5B  has an identical structure to the gas detection main body  1   a . The following descriptions for the gas detection main body  11  are provided for explaining the structure of the gas detection main body  1   a.    
     Please refer to  FIG. 1 ,  FIGS. 2A to 2C ,  FIGS. 3A to 3B ,  FIG. 4  and  FIGS. 5A to 5B . The gas detection main body  11  includes a base  111 , a piezoelectric actuator  112 , a driving circuit board  113 , a laser component  114 , a sensor  115  and an outer cover  116 . The base  111  includes a first surface  1111 , a second surface  1112 , a laser loading region  1113 , a gas-inlet groove  1114 , a gas-guiding-component loading region  1115 , and a gas-outlet groove  1116 . The second surface  1112  is opposite to the first surface  1111 . The laser loading region  1113  is hollowed out from the first surface  1111  to the second surface  1112 . The gas-inlet groove  1114  is concavely formed from the second surface  1112  and disposed adjacent to the laser loading region  1113 . The gas-inlet groove  1114  includes a gas-inlet  1114   a  and a transparent window  1114   b  opened on two lateral walls thereof and in communication with the laser loading region  1113 . The gas-guiding-component loading region  1115  is concavely formed from the second surface  1112  and in communication with the gas-inlet groove  1114 . The gas-guiding-component loading region  1115  has a ventilation hole  1115   a  penetrated a bottom surface thereof. The gas-outlet groove  1116  is concavely formed from a region of the first surface  1111  spatially corresponding to the bottom surface of the gas-guiding-component loading region  1115 , and hollowed out from the first surface  1111  to the second surface  1112  in a region where the first surface  1111  is misaligned with the gas-guiding-component loading region  1115 , wherein the gas-outlet groove  1116  is in communication with the ventilation hole  1115   a  and includes a gas-outlet  1116   a  mounted thereon. The piezoelectric actuator  112  is accommodated in the gas-guiding-component loading region  1115 . The driving circuit board  113  covers and attaches to the second surface  1112  of the base  111 . The laser component  114  is positioned and disposed on the driving circuit board  113  and electrically connected to the driving circuit board  113 , and is accommodated in the laser loading region  1113 . A light beam path emitted by the laser component  114  passes through the transparent window  1114   b  and extends in an orthogonal direction perpendicular to the gas-inlet groove  1114 . The sensor  115  is positioned and disposed on the driving circuit board  113  and electrically connected to the driving circuit board  113 , and is accommodated in the gas-inlet groove  1114  at a region orthogonal to the light beam path projected by the laser component  114 . The sensor  115  detects the suspended particles in the gas passing through the gas-inlet groove  1114  and irradiated by the light beam emitted from the laser component  114 . The outer cover  116  covers the first surface  1111  of the base  111  and includes a lateral plate  1161 . The lateral plate  1161  includes an inlet opening  1161   a  and an outlet opening  1161   b  at positions spatially corresponding to the gas-inlet  1114   a  and the gas-outlet  1116   a  of the base  111 , respectively. The inlet opening  1161   a  is spatially corresponding to the gas-inlet  1114   a  of the base  111 , and the outlet opening  1161   b  is spatially corresponding to the gas-outlet  1116   a  of the base  111 . The first surface  1111  of the base  111  is covered by the outer cover  116 , and the second surface  1112  of the base  111  is covered by the driving circuit board  113 . Thus, the gas-inlet groove  1114  defines an inlet path and the gas-outlet groove  1116  defines an outlet path, thereby the piezoelectric actuator  112  accelerates introducing the gas outside the gas-inlet  1114   a  of the base  111  into the inlet path defined by the gas-inlet groove  1114  through the inlet opening  1161   a , and a concentration of the suspended particles contained in the gas is detected by at least one sensor  115 . The gas is guided by the piezoelectric actuator  112  to enter the outlet path defined by the gas-outlet groove  1116  through the ventilation hole  1115   a  and finally discharged through the gas-outlet  1116   a  of the base  111  and the outlet opening  1161   b.    
     Please refer to  FIGS. 2A to 2C ,  FIGS. 3A to 3B ,  FIG. 4  and  FIGS. 5A to 5B . The gas detection main body  11  is used to detect the flow-in gas and generate detection data. In the embodiment, the gas detection main body  11  includes a base  111 , a piezoelectric actuator  112 , a driving circuit board  113 , a laser component  114 , a sensor  115  and an outer cover  116 . The base  111  includes a first surface  1111 , a second surface  1112 , a laser loading region  1113 , a gas-inlet groove  1114 , a gas-guiding-component loading region  1115  and a gas-outlet groove  1116 . In the embodiment, the first surface  1111  and the second surface  1112  are two surfaces opposite to each other. In the embodiment, the laser loading region  1113  is hollowed out from the first surface  1111  to the second surface  1112 . The gas-inlet groove  1114  is concavely formed from the second surface  1112  and disposed adjacent to the laser loading region  1113 . The gas-inlet groove  1114  includes a gas-inlet  1114   a  and two lateral walls. The gas-inlet  1114   a  is in communication with an environment outside the base  111 , and is spatially corresponding in position to an inlet opening  1161   a  of the outer cover  116 . Two transparent windows  1114   b  are opened on the two lateral walls, respectively, and are in communication with the laser loading region  1113 . Therefore, as the first surface  1111  of the base  111  is covered and attached by the outer cover  116 , and the second surface  1112  of the base  111  is covered and attached by the driving circuit board  113 , the gas-inlet groove  1114 , the outer cover  116 , and the driving circuit board  113  collaboratively define an inlet path. 
     In the embodiment, the gas-guiding-component loading region  1115  mentioned above is concavely formed from the second surface  1112  and in communication with the gas-inlet groove  1114 . A ventilation hole  1115   a  penetrates a bottom surface of the gas-guiding-component loading region  1115 . In the embodiment, the gas-outlet groove  1116  includes a gas-outlet  1116   a , and the gas-outlet  1116   a  is spatially corresponding to the outlet opening  1161   b  of the outer cover  116 . The gas-outlet groove  1116  includes a first section  1116   b  and a second section  1116   c . The first section  1116   b  is concavely formed from a region of the first surface  1111  spatially corresponding to a vertical projection area of the gas-guiding-component loading region  1115 . The second section  1116   c  is hollowed out from the first surface  1111  to the second surface  1112  in a region where the first surface  1111  is misaligned with the vertical projection area of the gas-guiding-component loading region  1115  and extended therefrom. The first section  1116   b  and the second section  1116   c  are connected to form a stepped structure. Moreover, the first section  1116   b  of the gas-outlet groove  1116  is in communication with the ventilation hole  1115   a  of the gas-guiding-component loading region  1115 , and the second section  1116   c  of the gas-outlet groove  1116  is in communication with the gas-exhaust  1116   a . In that, when the first surface  1111  of the base  111  is attached and covered by the outer cover  116  and the second surface  1112  of the base  111  is attached and covered by the driving circuit board  113 , the gas-outlet groove  1116 , the outer cover  116  and the driving circuit board  113  collaboratively define an outlet path. 
     Please refer to  FIG. 2C  and  FIG. 4 . In the embodiment, the laser component  114  and the sensor  115  are disposed on the driving circuit board  113  and located within the base  111 . In order to clearly describe and illustrate the positions of the laser component  114  and the sensor  115  in the base  111 , the driving circuit board  113  is specifically omitted in  FIG. 4 . The laser component  114  is accommodated in the laser loading region  1113  of the base  111 , and the sensor  115  is accommodated in the gas-inlet groove  1114  of the base  111  and is aligned to the laser component  114 . In addition, the laser component  114  is spatially corresponding to the transparent window  1114   b , thereby a light beam emitted by the laser component  114  passes through the transparent window  1114   b  and irradiates into the gas-inlet groove  1114 . The path of the light beam extends from the laser component  114  and passes through the transparent window  1114   b  in an orthogonal direction perpendicular to the gas-inlet groove  1114 . 
     In the embodiment, a projecting light beam emitted from the laser component  114  passes through the transparent window  1114   b  and enters the gas-inlet groove  1114  to irradiate the suspended particles contained in the gas passing through the gas-inlet groove  1114 . When the suspended particles contained in the gas are irradiated and generate scattered light spots, the scattered light spots are received and calculated by the sensor  115  for obtaining related information about the sizes and the concentration of the suspended particles contained in the gas. In the embodiment, the sensor  115  is a PM 2.5  sensor. 
     In the embodiment, the at least one sensor  115  of the gas detection main body  11  includes a volatile organic compound sensor for detecting and obtaining the gas information of CO 2  or TVOC. The at least one sensor  115  of the gas detection main body  11  includes a formaldehyde sensor for detecting and obtaining the gas information of formaldehyde. The at least one sensor  115  of the gas detection main body  11  includes a sensor for detecting and obtaining the gas information of PM 1 , PM 2.5  or PM 10 . The at least one sensor  115  of the gas detection main body  11  includes a pathogenic bacteria sensor for detecting and obtaining the gas information of bacteria, fungi or pathogenic bacteria. 
     The gas detection main body  11  of the present disclosure not only detects the suspended particles in the gas, but also detects the characteristics of the introduced gas. Preferably but not exclusively, the characteristics of the introduced gas that can be detected is selected from the group consisting of formaldehyde, carbon monoxide, carbon dioxide, ozone, sulfur dioxide, nitrogen dioxide, lead, total volatile organic compounds (TVOC), bacteria, fungi, pathogenic bacteria, virus, temperature, humidity and a combination thereof. In the embodiment, the gas detection main body  11  further includes a first volatile-organic-compound sensor  117   a . The first volatile-organic-compound sensor  117   a  positioned and disposed on the driving circuit board  113  is electrically connected to the driving circuit board  113 , and is accommodated in the gas-outlet groove  1116 , so as to detect the gas flowing through the outlet path of the gas-outlet groove  1116 . Thus, the concentration or the characteristics of volatile organic compounds contained in the gas in the outlet path can be detected. Alternatively, in an embodiment, the gas detection main body  11  further includes a second volatile-organic-compound sensor  117   b . The second volatile-organic-compound sensor  117   b  positioned and disposed on the driving circuit board  113  is electrically connected to the driving circuit board  113  and is accommodated in the light trapping region  1117 . Thus, the concentration or the characteristics of volatile organic compounds contained in the gas flowing through the inlet path of the gas-inlet groove  1114  and transporting into the light trapping region  1117  through the transparent window  1114   b  can be detected. 
     Please refer to  FIG. 5A  and  FIG. 5B . The piezoelectric actuator  112  is accommodated in the gas-guiding-component loading region  1115  of the base  111 . Preferably but not exclusively, the gas-guiding-component loading region  1115  is square-shaped and includes four positioning protrusions  1115   b  disposed at four corners of the gas-guiding-component loading region  1115 , respectively. The piezoelectric actuator  112  is disposed in the gas-guiding-component loading region  1115  through the four positioning protrusions  1115   b . In addition, as shown in  FIGS. 3A, 3B, 8B and 8C , the gas-guiding-component loading region  1115  is in communication with the gas-inlet groove  1114 . When the piezoelectric actuator  112  is enabled, the gas in the gas-inlet groove  1114  is inhaled by the piezoelectric actuator  112 , so that the gas flows into the piezoelectric actuator  112 , and is transported into the gas-outlet groove  1116  through the ventilation hole  1115   a  of the gas-guiding-component loading region  1115 . 
     Please refer to  FIGS. 2B and 2C . In the embodiment, the driving circuit board  113  covers and attaches to the second surface  1112  of the base  111 , and the laser component  114  is positioned and disposed on the driving circuit board  113 , and is electrically connected to the driving circuit board  113 . The sensor  115  is positioned and disposed on the driving circuit board  113 , and is electrically connected to the driving circuit board  113 . As shown in  FIG. 2B , when the outer cover  116  covers the base  111 , the inlet opening  1161   a  is spatially corresponding to the gas-inlet  1114   a  of the base  111  (as shown in  FIG. 8A ), and the outlet opening  1161   b  is spatially corresponding to the gas-outlet  1116   a  of the base  111  (as shown in  FIG. 8C ). 
     Please refer to  FIGS. 6A to 6B ,  FIGS. 7A to 7B ,  FIGS. 8A to 8C  and  FIG. 9 . In the embodiment, the piezoelectric actuator  112  includes a gas-injection plate  1121 , a chamber frame  1122 , an actuator element  1123 , an insulation frame  1124  and a conductive frame  1125 . The gas-injection plate  1121  includes a suspension plate  1121   a  capable of bending and vibrating and a hollow aperture  1121   b  formed at the center of the suspension plate  1121   a . The chamber frame  1122  is carried and stacked on the suspension plate  1121   a . The actuator element  1123  is carried and stacked on the chamber frame  1122  and includes a piezoelectric carrying plate  1123   a , an adjusting resonance plate  1123   b  and a piezoelectric plate  1123   c . The piezoelectric carrying plate  1123   a  is carried and stacked on the chamber frame  1122 , the adjusting resonance plate  1123   b  is carried and stacked on the piezoelectric carrying plate  1123   a , and the piezoelectric plate  1123   c  is carried and stacked on the adjusting resonance plate  1123   b . After receiving a voltage, the piezoelectric carrying plate  1123   a  and the adjusting resonance plate  1123   b  can be driven to bend and vibrate in a reciprocating manner. The insulation frame  1124  is carried and stacked on the actuator element  1123 . The conductive frame  1125  is carried and stacked on the insulation frame  1124 . In the embodiment, the bottom of the gas-injection plate  1121  is fixed on the gas-guiding-component loading region  1115 , so that a vacant space  1121   c  surrounding the gas-injection plate  1121  is defined for flowing the gas therethrough, and a flowing chamber  1127  is formed between the gas-injection plate  1121  and the bottom surface of the gas-guiding-component loading region  1115 . A resonance chamber  1126  is collaboratively defined by the actuator element  1123 , the chamber frame  1122  and the suspension plate  1121   a . Through driving the actuator element  1123  to drive the gas-injection plate  1121  to resonate, the suspension plate  1121   a  of the gas-injection plate  1121  generates vibration and displacement in a reciprocating manner, so as to inhale the gas into the flowing chamber  1127  through the vacant space  1121   c  and then eject out for completing a gas flow transmission. The gas detection main body  11  further includes at least one first volatile-organic-compound sensor  117   a . The first volatile-organic-compound sensor  117   a  is positioned and disposed on the driving circuit board  113  and electrically connected to the driving circuit board  113 , and is accommodated in the gas-outlet groove  1116 , so as to detect the gas guided through the outlet path. 
     Please refer to  FIGS. 6A and 6B . In the embodiment, the piezoelectric actuator  112  includes a gas-injection plate  1121 , a chamber frame  1122 , an actuator element  1123 , an insulation frame  1124  and a conductive frame  1125 . In the embodiment, the gas-injection plate  1121  is made by a flexible material and includes a suspension plate  1121   a  and a hollow aperture  1121   b . The suspension plate  1121   a  is a sheet structure and is permitted to undergo a bending deformation. Preferably but not exclusively, the shape and the size of the suspension plate  1121   a  are corresponding to the inner edge of the gas-guiding-component loading region  1115 , but not limited thereto. The shape of the suspension plate  1121   a  is selected from the group consisting of a square, a circle, an ellipse, a triangle and a polygon. The hollow aperture  1121   b  passes through a center of the suspension plate  1121   a , so as to allow the gas to flow therethrough. 
     Please refer to  FIG. 6A ,  FIG. 6B  and  FIG. 7A . In the embodiment, the chamber frame  1122  is carried and stacked on the gas-injection plate  1121 . In addition, the shape of the chamber frame  1122  is corresponding to the gas-injection plate  1121 . The actuator element  1123  is carried and stacked on the chamber frame  1122 . A resonance chamber  1126  is collaboratively defined by the actuator element  1123 , the chamber frame  1122  and the suspension plate  1121   a  and is formed between the actuator element  1123 , the chamber frame  1122  and the suspension plate  1121   a . The insulation frame  1124  is carried and stacked on the actuator element  1123  and the appearance of the insulation frame  1124  is similar to that of the chamber frame  1122 . The conductive frame  1125  is carried and stacked on the insulation frame  1124 , and the appearance of the conductive frame  1125  is similar to that of the insulation frame  1124 . In addition, the conductive frame  1125  includes a conducting pin  1125   a  and a conducting electrode  1125   b . The conducting pin  1125   a  is extended outwardly from an outer edge of the conductive frame  1125 , and the conducting electrode  1125   b  is extended inwardly from an inner edge of the conductive frame  1125 . Moreover, the actuator element  1123  further includes a piezoelectric carrying plate  1123   a , an adjusting resonance plate  1123   b  and a piezoelectric plate  1123   c . The piezoelectric carrying plate  1123   a  is carried and stacked on the chamber frame  1122 . The adjusting resonance plate  1123   b  is carried and stacked on the piezoelectric carrying plate  1123   a . The piezoelectric plate  1123   c  is carried and stacked on the adjusting resonance plate  1123   b . The adjusting resonance plate  1123   b  and the piezoelectric plate  1123   c  are accommodated in the insulation frame  1124 . The conducting electrode  1125   b  of the conductive frame  1125  is electrically connected to the piezoelectric plate  1123   c . In the embodiment, the piezoelectric carrying plate  1123   a  and the adjusting resonance plate  1123   b  are made by a conductive material. The piezoelectric carrying plate  1123   a  includes a piezoelectric pin  1123   d . The piezoelectric pin  1123   d  and the conducting pin  1125   a  are electrically connected to a driving circuit (not shown) of the driving circuit board  113 , so as to receive a driving signal, such as a driving frequency and a driving voltage. Through this structure, a circuit is formed by the piezoelectric pin  1123   d , the piezoelectric carrying plate  1123   a , the adjusting resonance plate  1123   b , the piezoelectric plate  1123   c , the conducting electrode  1125   b , the conductive frame  1125  and the conducting pin  1125   a  for transmitting the driving signal. Moreover, the insulation frame  1124  provides insulation between the conductive frame  1125  and the actuator element  1123 , so as to avoid the occurrence of a short circuit. Thereby, the driving signal is transmitted to the piezoelectric plate  1123   c . After receiving the driving signal such as the driving frequency and the driving voltage, the piezoelectric plate  1123   c  deforms due to the piezoelectric effect, and the piezoelectric carrying plate  1123   a  and the adjusting resonance plate  1123   b  are further driven to bend and vibrate in the reciprocating manner. 
     As described above, the adjusting resonance plate  1123   b  is located between the piezoelectric plate  1123   c  and the piezoelectric carrying plate  1123   a  and served as a cushion between the piezoelectric plate  1123   c  and the piezoelectric carrying plate  1123   a . Thereby, the vibration frequency of the piezoelectric carrying plate  1123   a  is adjustable. Basically, the thickness of the adjusting resonance plate  1123   b  is greater than the thickness of the piezoelectric carrying plate  1123   a , and the thickness of the adjusting resonance plate  1123   b  is adjustable, thereby the vibration frequency of the actuator element  1123  can be adjusted accordingly. 
     Please refer to  FIG. 6A ,  FIG. 6B  and  FIG. 7A . In the embodiment, the gas-injection plate  1121 , the chamber frame  1122 , the actuator element  1123 , the insulation frame  1124  and the conductive frame  1125  are stacked and positioned in the gas-guiding-component loading region  1115  sequentially, so that the piezoelectric actuator  112  is supported and positioned in the gas-guiding-component loading region  1115 . The bottom of the gas-injection plate  1121  is fixed on the four positioning protrusions  1115   b  of the gas-guiding-component loading region  1115  for supporting and positioning, so that the vacant space  1121   c  is defined between the suspension plate  1121   a  of the gas-injection plate  1121  and an inner edge of the gas-guiding-component loading region  1115  for gas flowing therethrough. 
     Please refer to  FIG. 7A . A flowing chamber  1127  is formed between the gas-injection plate  1121  and the bottom surface of the gas-guiding-component loading region  1115 . The flowing chamber  1127  is in communication with the resonance chamber  1126  between the actuator element  1123 , the chamber frame  1122  and the suspension plate  1121   a  through the hollow aperture  1121   b  of the gas-injection plate  1121 . By controlling the vibration frequency of the gas in the resonance chamber  1126  to be close to the vibration frequency of the suspension plate  1121   a , the Helmholtz resonance effect is generated between the resonance chamber  1126  and the suspension plate  1121   a , so as to improve the efficiency of gas transportation. 
     Please refer to  FIG. 7B . When the piezoelectric plate  1123   c  moves away from the bottom surface of the gas-guiding-component loading region  1115 , the suspension plate  1121   a  of the gas-injection plate  1121  is driven to move away from the bottom surface of the gas-guiding-component loading region  1115  by the piezoelectric plate  1123   c . In that, the volume of the flowing chamber  1127  is expanded rapidly, the internal pressure of the flowing chamber  1127  is decreased to form a negative pressure, and the gas outside the piezoelectric actuator  112  is inhaled through the vacant space  1121   c  and enters the resonance chamber  1126  through the hollow aperture  1121   b . Consequently, the pressure in the resonance chamber  1126  is increased to generate a pressure gradient. Further as shown in  FIG. 7C , when the suspension plate  1121   a  of the gas-injection plate  1121  is driven by the piezoelectric plate  1123   c  to move toward the bottom surface of the gas-guiding-component loading region  1115 , the gas in the resonance chamber  1126  is discharged out rapidly through the hollow aperture  1121   b , and the gas in the flowing chamber  1127  is compressed, thereby the converged gas is quickly and massively ejected out of the flowing chamber  1127  under the condition close to an ideal gas state of the Benulli&#39;s law, and transported to the ventilation hole  1115   a  of the gas-guiding-component loading region  1115 . By repeating the above operation steps shown in  FIG. 7B  and  FIG. 7C , the piezoelectric plate  1123   c  is driven to vibrate in a reciprocating manner. According to the principle of inertia, since the gas pressure inside the resonance chamber  1126  is lower than the equilibrium gas pressure after the converged gas is ejected out, therefore the gas is introduced into the resonance chamber  1126  again. Moreover, the vibration frequency of the gas in the resonance chamber  1126  is controlled to be close to the vibration frequency of the piezoelectric plate  1123   c , so as to generate the Helmholtz resonance effect to achieve the gas transportation at high speed and in large quantities. 
     Furthermore, as shown in  FIG. 8A , the gas is inhaled through the inlet opening  1161   a  of the outer cover  116 , flows into the gas-inlet groove  1114  of the base  111  through the gas-inlet  1114   a , and is transported to the position of the sensor  115 . Further as shown in  FIG. 8B , the piezoelectric actuator  112  is enabled continuously to inhale the gas into the inlet path, and facilitate the external gas to be introduced rapidly, flowed stably, and be transported above the sensor  115 . At this time, a projecting light beam emitted from the laser component  114  passes through the transparent window  1114   b  and enters into the gas-inlet groove  1114  to irritate the suspended particles contained in the gas flowing above the sensor  115  in the gas-inlet groove  1114 . When the suspended particles contained in the gas are irradiated and generate scattered light spots, the scattered light spots are received and calculated by the sensor  115  for obtaining related information about the sizes and the concentration of the suspended particles contained in the gas. Moreover, the gas above the sensor  115  is continuously driven and transported by the piezoelectric actuator  112 , flows into the ventilation hole  1115   a  of the gas-guiding-component loading region  1115 , and is transported to the first section  1116   b  of the gas-outlet groove  1116 . As shown in  FIG. 8C , after the gas flows into the first section  1116   b  of the gas-outlet groove  1116 , the gas is continuously transported into the first section  1116   b  by the piezoelectric actuator  112 , and the gas in the first section  1116   b  is pushed to the second section  1116   c . Finally, the gas is discharged out through the gas-outlet  1116   a  and the outlet opening  1161   b.    
     As shown in  FIG. 9 , the base  111  further includes a light trapping region  1117 . The light trapping region  1117  is hollowed out from the first surface  1111  to the second surface  1112  and is spatially corresponding to the laser loading region  1113 . In the embodiment, the light beam emitted by the laser component  114  is projected into the light trapping region  1117  through the transparent window  1114   b . The light trapping region  1117  includes a light trapping structure  1117   a  having an oblique cone surface. The light trapping structure  1117   a  is spatially corresponding to the light beam path extended from the laser component  114 . In addition, the projecting light beam emitted from the laser component  114  is reflected into the light trapping region  1117  through the oblique cone surface of the light trapping structure  1117   a , so as to prevent the projecting light beam from reflecting back to the position of the sensor  115 . In the embodiment, a light trapping distance D is maintained between the transparent window  1114   b  and a position where the light trapping structure  1117   a  receives the projecting light beam, so as to avoid the projecting light beam projecting on the light trapping structure  1117   a  from reflecting back to the position of the sensor  115  directly due to excessive stray light generated after reflection, which results in distortion of detection accuracy. 
     Please refer to  FIG. 2C  and  FIG. 9 . The gas detection main body  11  of the present disclosure not only detects the suspended particles in the gas, but also detects the characteristics of the introduced gas. Preferably but not exclusively, the characteristics of the introduced gas that can be detected is selected from the group consisting of formaldehyde, carbon monoxide, carbon dioxide, ozone, sulfur dioxide, nitrogen dioxide, lead, total volatile organic compounds (TVOC), bacteria, fungi, pathogenic bacteria, virus, temperature, humidity and a combination thereof. In the embodiment, the gas detection main body  11  further includes a first volatile-organic-compound sensor  117   a . The first volatile-organic-compound sensor  117   a  positioned and disposed on the driving circuit board  113  is electrically connected to the driving circuit board  113 , and is accommodated in the gas-outlet groove  1116 , so as to detect the gas flowing through the outlet path of the gas-outlet groove  1116 . Thus, the concentration or the characteristics of volatile organic compounds contained in the gas in the outlet path can be detected. Alternatively, in an embodiment, the gas detection main body  11  further includes a second volatile-organic-compound sensor  117   b . The second volatile-organic-compound sensor  117   b  positioned and disposed on the driving circuit board  113  is electrically connected to the driving circuit board  113  and is accommodated in the light trapping region  1117 . Thus, the concentration or the characteristics of volatile organic compounds contained in the gas flowing through the inlet path of the gas-inlet groove  1114  and transporting into the light trapping region  1117  through the transparent window  1114   b  is detected. 
     Please refer to  FIG. 1 . The driving controller  25  is disposed in the gas-intake channel  21  near the gas-intake guider  24   a . The driving controller  25  is implemented to control the enablement and the disablement of the purification unit  23 , the gas-intake guider  24   a  and the gas-exhaust guider  24   b . The driving controller  25  further includes at least one wireless multiplexing communication module, a processing and computing system, a wired control module and an external transmission module. The wireless multiplexing communication module includes at least one selected from the group consisting of an infrared module, a Wi-Fi module, a Bluetooth module, a radio frequency identification module, a near field communication module and a combination thereof. The wireless multiplexing communication module receives and transmits the detection data through multiplexing technique. The detection data received by the wireless multiplexing communication module is processed and computed by the processing and computing system, so as to automatically adjust the setting values of the exported airflow rate of the gas-intake guider  24   a  and the setting values of the exported airflow rate of the gas-exhaust guider  24   b . The wired control module provides control signals to the purification unit  23 , the gas-intake guider  24   a , the gas-exhaust guider  24   b  and the gas detection main body  1   a . The control signals include power signals, enabling signals, disabling signals, standby signals, signals for setting, and setting values of the exported airflow rates. The external transmission module executes a communication transmission with an external device via the wireless multiplexing communication module. The external device includes at least one selected from the group consisting of a handheld device, a mobile device, a tablet, a personal computer, a notebook and a combination thereof. The communication transmission includes the transmission of a first detection data, a second detection data and the control signals. 
     In an embodiment, the driving controller  25  is implemented to control the purification unit  23  and thus control the enablement and disablement of the photo-catalyst unit  23   b , the photo-plasma unit  23   c , the negative ionizer  23   d  and the plasma ion unit  23   e , but not limited thereto. The driving controller  25  can also control the time of enablement, the reservation time of enablement, and the time of disablement after operation for a period of time or the time of disablement of the photo-catalyst unit  23   b , the photo-plasma unit  23   c , the negative ionizer  23   d  and the plasma ion unit  23   e , respectively. 
     In an embodiment, the driving controller  25  is implemented to control the enablement and disablement of the gas-intake guider  24   a  and the gas-exhaust guider  24   b , but not limited thereto. The driving controller  25  can also control the time of enablement, the reservation time of enablement, and the time of disablement after operation for a period of time or the time of disablement of the gas-intake guider  24   a  and the gas-exhaust guider  24   b , respectively. Notably, if the gas-intake guider  24   a  is an air-conditioner, the driving controller  25  can be further implemented to specify a target temperature or a target humidity for the gas-intake guider  24   a . Preferably but not exclusively, a preset target temperature of the gas-intake guider  24   a  is 24° C. and a preset target humidity of the gas-intake guider  24   a  is a relative humidity of 50%. 
     In an embodiment, the driving controller  25  further includes at least one wireless multiplexing communication module. The wireless multiplexing communication module includes at least one selected from the group consisting of an infrared module, a Wi-Fi module, a Bluetooth module, a radio frequency identification module, a near field communication module and a combination thereof. Notably, the infrared module receives the control signal at a corresponding frequency. The Wi-Fi module receives and transmits the control signal or executes the communication transmission of detection data in the same domain through multiplexing technique, and there can have more than one Internet device in the same domain. The Bluetooth module receives and transmits the control signal or executes the communication transmission of detection data from a paired device through multiplexing technique, and there can have more than one device to pair with the Bluetooth module. The radio frequency identification module can be implemented to be, such as a smart card using a 13.56 MHz frequency band, and the complex setting values of the control signal can be pre-written therein, so that the complex operation or setting can be completed through tapping the card. The near field communication module is cooperated with a mobile device with NFC sensor, such as a cellphone, and a corresponding software in the mobile device. After the mobile device is sensed by the radio frequency identification module of the gas exchange device  2 , the connection or pairing between the mobile device and the gas exchange device  2  through one or a combination of the wireless multiplexing communication module can be completed instantly, so as to immediately interlink the mobile device and the gas exchange device  2 . Preferably but not exclusively, the wireless multiplexing communication module can further include an electronic fence through utilizing the global positioning system (GPS) or adopt a wireless power supply for operation. 
     The wireless multiplexing communication module receives and transmits the detection data detected by the gas detection main body  1   a  through multiplexing technique. The detection data received by the wireless multiplexing communication module is processed and computed by the processing and computing system, so as to automatically adjust the setting values of the exported airflow rate of the gas-intake guider  24   a  and the setting values of the exported airflow rate of the gas-exhaust guider  24   b . Notably, although the setting values can be generated automatically by the processing and computing system, the priority of the control signal transmitted from the external device should be higher. For example, assume that the exported airflow rate of the gas-exhaust guider  24   b  should be 800 clean air output ration after processing and computing, but the gas exchange device  2  has received the setting values from a mobile device via the wireless multiplexing communication module previously which sets the exported airflow rate of the gas-exhaust guider  24   b  to be 1200 clean air output ration, under such circumstance, the exported airflow rate of the gas-exhaust guider  24   b  is still remained at 1200 clean air output ration. 
     The wired control module provides control signals to the purification unit  23 , the gas-intake guider  24   a , the gas-exhaust guider  24   b  and the gas detection main body  1   a . The control signals include power signals, enabling signals, disabling signals, standby signals, signals for setting, and setting values of the exported airflow rates. Notably, the control signals also can be provided via the wireless multiplexing communication module, and in this circumstance, the gas detection main body  1   a  is equipped with wireless communication function, such as the Wi-Fi image provided within the gas detection main body  1   a  shown in  FIG. 1 . 
     The external transmission module executes a communication transmission with an external device via the wireless multiplexing communication module. The external device includes at least one selected from the group consisting of a handheld device, a mobile device, a tablet, a personal computer, a notebook and a combination thereof. The communication transmission includes the transmission of a first detection data, a second detection data and the control signals. 
     Lastly, please refer to  FIG. 1 . The gas exchange device  2  may further include a second high efficiency particulate air filter screen  26  disposed within the gas-exhaust channel  22  near the gas-exhaust-channel inlet  22   a . The second high efficiency particulate air filter screen  26  can filter the gas guided into the gas-exhaust channel  22  by the gas-exhaust guider  24   b.    
     In summary, the gas exchange device of the present disclosure is provided for preventing people from breathing harmful gases in an activity space through supplying a purified gas by gas exchange, monitoring the air quality of the activity space in real time anytime and anywhere, and purifying the air in the activity space instantly when the air quality is poor. The cooperation between the gas detection main body, the purification unit, the gas-intake guider and the gas-exhaust guider allows to provide a specific exported airflow rate for providing a purified gas in the activity space and taking the polluted gas away. The exported airflow rate of the gas-exhaust guider is within a range of 200˜1600 CADR (Clean Air Output Ration) which is able to improve the air quality in the activity space. 
     While the invention has been described in terms of what is presently considered to be the most practical and preferred embodiments, it is to be understood that the invention needs not be limited to the disclosed embodiment. On the contrary, it is intended to cover various modifications and similar arrangements included within the spirit and scope of the appended claims which are to be accorded with the broadest interpretation so as to encompass all such modifications and similar structures.