air-purifying,having a basic body 1, a water valve nozzle 2, water intake 3, and a circulation and pump unit 4,marked by it,that the basic body first forms an air channel 5,where the air duct 5 has an intake air section 6, which is trained to conduct an emission-charged intake air 7,where the air duct 5 has an exhaust air section 8, which is trained to conduct a purified exhaust air 9.that the water scale wall nozzle is positioned in the air duct 5 and is designed to produce a water scale wall 11 through a purification water 10 in a water scale area, with the water scale wall area extending over an air duct cross section,separating the intake air section 6 and the exhaust air section 8,where the emission-charged intake air 7 from the intake air section 6 is washable by means of the water valve wall 11 and can be discharged as purified exhaust air 9 to the exhaust air section 8,that the water catchment level 3 is located below the water scale wall area and that is how the purification water 10 from the water catchment area 11 is trained,and that the circulation and pump unit 4 has a sampling line 12, a supply line 13 and a pump 14,where the sampling line 12 is designed to receive the purification water 10 from the water catchment area 3,where the supply line 13 is designed to supply the purification water to the water vapour nozzle,where the pump 14 is designed for pumping the purification water 10 from the sampling line 12 with pressure and for introducing it into the supply line 13.
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