Abstract: The invention relates to an antimicrobial purification device, which diffuses a volatile purification agent, for ventilation, heating and/or air conditioning systems, in particular in vehicles, comprising an air filter (1) consisting of a frame (2) holding a filtering agent (3). The filter (1) comprises at least one means for integrating substrate (5) holding the purification agent, consisting of a housing (4) holding the substrate (5) positioned in the frame (2) of the filter (1) or in a container mounted on this frame (2). A cap (6) sealing the housing (4) is fitted with a pin (18) to pierce a protective cover (19) in order to diffuse the purification agent as required.

Abstract: The invention relates to an air treatment device using a volatile treating agent contained inside a permeable container (1), particularly applicable to a ventilating, heating and/or air conditioning installation. The treating agent is a liquid packaged inside a cohesive spongy body (2) occupying the available volume of a chamber (3) formed by an internal hollow of the container (1).

Abstract: In an installation for heating/air conditioning the cabin of a motor vehicle, comprising a powered fan unit (18) delivering a flow of air in an air distribution conduit (12) in which at least one evaporator (22) is disposed, an electrostatic filtration system (30) is provided, comprising an ionising part and a collecting part, placed upstream of a plasma catalysis system (40) comprising a plasma generating part.