Patent ID: 6702662
Filing Date: 2004-03-09
Classification: A61G,F24F

Abstract:
Method for providing clean air in premises, wherein impure air is received or taken in into an air treatment device (1) from lower portions of the premises and cleaned or purified therein, characterized bycooling a first partial flow (DS1) of air received or taken in into the air treatment device (1) to a temperature that is lower than a temperature measured outside the air treatment device (1), while heating a second partial flow (DS2) of air received or taken in into said air treatment device (1), bringing the cooled air (KL) in the first partial flow (DS1) to flow in such a way, through at least one cell body member (17) in at least one air discharge unit (15), that the rate of the cooled air becomes low and thereby substantial co-ejection of surrounding impure air to avoided to define at least one zone of clean air (RZ) in the premises beneath the air discharge unit (15), and discharging, through an air discharge opening (16), the heated air (VL) in the second partial flow (DS2) in an upwards direction such that said heated air (VL) rises in the premises at low speed.