AIR CLEANING DEVICE Russian patent published in 2017 - IPC F24F7/13 

FIELD: ventilation.

SUBSTANCE: device is located in a window separating the space inside the room and the outside space. The device comprises an inlet chamber having a first inlet opening, a second inlet opening and an outlet opening, wherein the first inlet opening in an operative position is opened to the outside space and the second inlet opening in an operative position is opened to the interior of the room; an air blower, intended to inject air from the inlet chamber into the space inside the room through the outlet opening. The air is injected into the inlet chamber through the first inlet opening or through the second inlet opening; and a filter element positioned upstream before the air blower and designed to filter out pollutants from the air.

EFFECT: increased degree of purification.

10 cl, 8 dwg