AIR FILTER FOR VEHICLE VENTILATION SYSTEM Russian patent published in 2018 - IPC B60H3/06 

FIELD: wastewater treatment plants.

SUBSTANCE: invention relates to air filter (10) for vehicle ventilation system (14). Filter has a planar extension, along which air filter (10) can be pushed transversely to the direction of flow into flow section (12) of the flow of air handling unit (14), and filter medium (26) located along its planar extension, which is at least limited to at least one wall (16) of the frame. Frame comprises at least one notch (28), which can be brought into engagement with guiding elements (40, 42) of ventilation system (14) to guide air filter (10) when inserted into flow section (12). Notch is made in the form of an edge recess at edge (27) of frame wall (16) and has an undercut with respect to edge (27).

EFFECT: it is achieved that air filter (10) can be supported in two directions transversely to the insertion direction.

9 cl, 2 dwg