Photocatalytic air purifier for motor vehicle heating/ventilation or air conditioning system has irradiating light source associated with generator and photophore

摘要

A purifier, which treats circulating air by photocatalysis, has a light source (5, 5') that irradiates at least one wall (1, 2) coated with a photocatalytic agent and located in the path of the circulating air. The light source is associated with a photophore (8) having faces (10, 11) through which the light emerges to irradiate the coated walls. A purifier, which treats circulating air by photocatalysis, has a light source (5, 5') that irradiates at least one wall (1, 2) coated with a photocatalytic agent and located in the path of the circulating air. The light source is associated with a photophore (8) having faces (10, 11) through which the light emerges to irradiate the coated walls. The photophore faces cover at least one of its outer surfaces and are located in at least two concurrent planes angled at between 10 and 30[deg], and are e.g. in the form of prisms. Alternatively the photophore surfaces can be in the form of a series of spaced slats.