Abstract: A device for air purification, incorporated into a vehicle, which comprises a case, fixed to the outside of the vehicle and having a longitudinal duct through which air passes, the air entering impure through at least one opening located in the front part, with respect to the direction of travel of the vehicle, and exiting through at least one opening located in the rear part under the suctioning effect of at least one fan disposed in the opening. From the inlet to the outlet, the air purification device successively includes the following devices: a photocatalytic reactor; a reverse microwave; an activated carbon filter; and a HEPA filter, just before the fans located in the outlet conduit.

Abstract: The device has air ducts (21, 22) in which a fan/aspirator (4) is interposed, passive and mechanical air-filtration elements (2, 11, 13) being placed before the unit (3) formed. At the exit from said unit (3) there is an active filtration module that includes one or more non-thermal plasma conduits (6). When the ducts (22) closest to the module (7) bifurcate or branch inside said module (7), they define at least two clear air outlets (12), said unit (3), said module (7) and a filter (2) of said passive and mechanical filtration elements being connected to a control unit (5) by means of a communication (8) selected from mechanical, electrical, electronic and optoelectronic means and any combination thereof. The device can be used in land, water, air or space vehicles (10).

Abstract: The invention relates to an air cleaning device essentially comprising at least a vertical hollow structure having a first perforated side surface forming an inlet (1-2) for the air to be cleaned and a second perforated side surface forming an outlet (3-4) for the cleaned air. The invention is characterized in that the vertical hollow structure is covered with a protective cover and decorative elements (15) are positioned outside said cover in order to conceal the vertical hollow structure completely or partially. The structure contains filter units, as well as a fan (6-7) that forces the passage of air between the air inlet and the air outlet, thereby eliminating impalpable components and preventing a reaction with impure gases which are also eliminated.

Abstract: A system for filtering contaminants from a gas stream through atomized ultrafreezing including: a housing having an inlet mouth and an outlet mouth; a fluid temperature regulating element disposed within the inlet mouth; a venturi-type valve having a fluid speed regulator disposed downstream of the temperature regulating element; a down pipe disposed downstream of the venturi-type valve; at least one atomized water injector at the inlet of the down pipe which is capable of spraying the contaminated gas stream exiting the venturi-type valve; at least one liquid nitrogen shower element disposed in the down pipe downstream of the water injector which is capable of freezing the water, wherein water containing the contaminant is capable of solidifying into hail and precipitating; and a decanter connected to the outlet of the down pipe having a first separator for removing the hail from the gas stream, a discharge valve at the bottom of the decanter for discharging the hail from the decanter, and a second separator