Patent ID: 7582256

Claim:
Device for the continuous photocatalytic purification of the air of an inhabited room, in the form of a wall element ( 1 ), comprising: an external metal structure, preferably made of steel; an opening ( 11 ) for the intake of air to be treated, located at the bottom of the front part ( 10 ) of the wall element ( 1 ); an internal metal frame ( 4 ) to which a series of UVA lamps ( 3 ) are attached; a filter ( 2 ) comprising a grate covered by a film with photocatalytic titanium dioxide (TiO 2 ); an opening ( 12 ) for the outlet of the purified air, located at the top of the front part ( 10 ) of the wall element ( 1 ), the airflow inside the device being ensured by natural circulation or forced circulation with at least one fan ( 5 ); characterised in that said device comprises at least one grate made of expanded metal covered by a film with titanium dioxide (TiO 2 ) mainly in the anatase phase, so as to maximise the surface of the photocatalyst illuminated by the UVA light; wherein the at least one grate is arranged vertically, substantially parallel to the external metal structure, and supported only by fixings on the perimeter of the at least one grate.