Patent ID: 6197094
Filing Date: 2001-03-06
Classification: B01D,F24F,Y02A

Abstract:
A device for improving the quality of indoor air, said device comprising a casing (2) with an air inlet (3) and an air outlet (5), a member (7) arranged to cause air in a room, in which the casing is placed, to flow in throught the inlet and inside the casing to the outlet and therefrom out into the room again, and means (9,11) adapted to influence the quality of the air passing through the casing, said casing contaning leaf plants (9) and said member (7) being arranged to cause the air to flow post the leaf surfaces of the plants in order to remove contaminations and particles from the air by absorption thereof by means of the leafs of the plants, said member (7) generating an air flow being arranged down stream of the plants (9) in the path ot the air flow in order to suck air past them, characterized in that the air flow generating member (7) is arranged to achieve a flow of air through the casing which is 40-80 times the volume of the casing/hour, that the device comprises at least one nozzle (11) arranged to supply finely divided water to the inside of the casing up stream of the plants (9) in the air flow, that it comprises a control unit (15) adapted to control the supply of water through the nozzle for regulating the humidity of the air leaving the casing that the device is adapted to condition the air to a degree of moisture pleasant for human mucous membranes, which means the relative humidity of 35-45%, and that the device is adapted to reduce the temperature of the air drawn from the room into the casing to a pleasant level.