Abstract: Disclosed is a piece of furniture for air purification in the form of a substantially closed cabinet including: an upper purpose tray; side walls in vertical alignment below this tray; an opening in the top of the side walls; an opening in the bottom of the cabinet, in which an opening allows the filtered air to exit; an electrical power source; an air pressurizer connected to the power source, allowing the air to flow through the cabinet; a horizontal filter, parallel to the upper purpose tray and upstream of the air pressurizer; a vertical filter, perpendicular to the upper purpose tray downstream of the air pressurizer, at least 3 cm away from the nearest side wall; a duct between filter downstream of the air pressurizer and the nearest side wall, which duct allows the filtered air to be discharged towards the opening of the bottom part of the cabinet.

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.