The Multi-Purpose Respirator features a soft, comfortable, great fitting face piece for superior comfort and protection, a built-in exhalation valve and low profile replaceable cartridges for better vision. The Respirator comes in recloseable packaging for easy and safe storage. The Muti-pupose Respirator traps over 99.97 of toxic dust including lead, asbestos and Hantavirus. It also meets the latest US government respirator standards (P100 Class), OSHA and NIOSH requirements. The Multi-Purpose Respirator also provides protection from paint fumes, (except urethane paints), pesticides, lead fumes, ammonia, asbestos and toxic dusts. For replacement use MSA number 817667 replacement cartridges.