NIOSH Approved P100 99.97% filter efficiency effective against all solid, liquid and oil-based aerosols.|Replaceable XP100 OV/AG P100 Organic Vapor/Acid Gas Particulate Filters.|Easy-to-adjust, comfortable head strap assembly.|Soft, comfortable silicone facepiece. Professional Series facepieces provides more comfort and greater durability; each facepiece provided with a unique, bonus Hygiene Guard for clean storage and product protection.|Use for mold remediation in accordance with US-EPA Guidelines.