3M™ 051131-49488 6500QL Series Reusable Half Facepiece Respirator, S, 4-Point Quick Latch Suspension, Bayonet Connection, Resists: Acid Gas/Ammonia/Chlorine/Formaldehyde/Hydrogen Fluoride/Mercury Vapor/Methylamine/Organic Vapor 3M™ 051131-49488 6500QL Series Reusable Half Facepiece Respirator, S, 4-Point Quick Latch Suspension, Bayonet Connection, Resists: Acid Gas/Ammonia/Chlorine/Formaldehyde/Hydrogen Fluoride/Mercury Vapor/Methylamine/Organic Vapor