Abstract: Disclosed is a device for air purification, including: a base that may or may not be in direct contact with the surface on which it is placed, which base preferably has a rectangular contour; at least four side walls each including a filter, which side walls are preferably perpendicular to the base; an upper wall, on the face opposite its base including a prefilter-type filter formed of a flexible, foam or even fabric, honeycomb material; a source of electrical power; an air pressurizer connecting to the power source and ensuring the flow of air through the device; a duct between the filter on the upper wall and the air pressurizer. The pressurizer ensure air is sucked through the filter on the upper wall towards the air pressurizer, then flows from the pressurising to each filter in each side wall, before its discharge to the exterior of the device.

Abstract: A corona plasma cell includes a polarized electrode and a ground electrode, including a cylinder and a porous film, with the cylinder having a low profile and the polarized electrode not entering the cylinder; a corona plasma dual element including a first cell, a second cell having such a structure, which first and second cell are symmetrically arranged; and finally a plasma reactor including a plurality of cells or dual elements.

Abstract: A corona plasma cell includes a polarized electrode and a ground electrode, including a cylinder and a porous film, with the cylinder having a low profile and the polarized electrode not entering the cylinder; a corona plasma dual element including a first cell, a second cell having such a structure, which first and second cell are symmetrically arranged; and finally a plasma reactor including a plurality of cells or dual elements.