Air treatment unit for ventilation equipment

An air treatment unit produced in the form of a cartridge, which is configured to be positioned on at least part of the air circulation path in ventilation equipment, said air treatment unit comprising:

• an interior volume which is associated with at least one input orifice;
• and
• at least one output orifice positioned at the ends of an air circulation path,
• wherein at least part of the interior surface of the volume is equipped with at least one light-emission source with a wavelength of between 100 nm and 400 nm, designed to radiate towards the interior of the volume of the air treatment unit at one section at least of the air circulation path in the interior of the volume of the air treatment unit,
• wherein the air circulation path in the interior of the volume of the air treatment unit comprises at least one baffle positioned in the interior volume, such that no ray obtained from the at least one light-emission source can pass through the at least one input orifice and/or the at least one output orifice of the air treatment unit, and
• wherein the cartridge has a substantially flattened arrangement, defining firstly a peripheral frame, and secondly two wide opposite surfaces, which are surrounded respectively by this peripheral frame, and are positioned on both sides of the cartridge, such that at least one of these two surfaces comprises at least one output orifice and that the cartridge comprises at least one input orifice positioned at one portion at least of the peripheral surface of the frame, such that the direction of the flow of air which enters the cartridge is oriented along an axis substantially orthogonal to the axis of the direction of the flow of air output from the cartridge.