Safe Life Corp.'s A400 Series N95 Respirator with Antimicrobial Protection, unlike traditional N95 respirators, is a comfortable, breathable respirator with the added protection of an active antimicrobial based on iodine, which has a nearly 200-year track record for being effective against a broad spectrum of microorganisms. As the H1N1 influenza virus continues to spread around the world, the need for N95 respirators for healthcare workers and other occupational users is more critical than ever. The Centers for Disease Control and Prevention (CDC) reinforced its existing guidelines on respiratory protection by recommending the use of fit-tested, N95 respirators for healthcare personnel who are in close contact with patients with suspected or confirmed 2009 H1N1 influenza.