This product to be fixed to the ceiling or on a wall purifies and sanitizes the air from viruses, bacteria, spores, fungi, molds and odors. In a few hours it eliminates up to 99.9% of the elements present in an environment of up to 40 m2 thanks to the cold plasma technology which diffuses negative ions which are beneficial to health. It does not require maintenance or pipe connections. Controllable with a switch. Made in italy