Antibacterial air filter medium and filter unit using the same

摘要

An antibacterial air filter medium has at least one layer of a porous polytetrafluoroethylene film and at least one layer of an antibacterial reinforcing material which may be colored so as to make dirt inconspicuous; the antibacterial air filter medium retains its filtering performance even in an environment rich in water and can be inhibited from undergoing the growth of bacteria or mold fungi even in such an environment; and the antibacterial air filter medium, even when used after washing with water or in a high-humidity environment, does not undergo a decrease in filtering property such as particle collection efficiency and can be inhibited from undergoing the growth of bacteria or mold fungi thereon.