Microbicidal air filter for use with an air passageway, which includes an immobilization network including fibers having substantially embodied therein an amount of at least one antimicrobial agent sufficient to substantially immobilize, retain and kill microbes suspended in a volume of air moving through...http://www.google.fr/patents/US7559968?utm_source=gb-gplus-shareBrevet US7559968 - Microbicidal air filter
