3M™ Rugged Comfort Quick Latch Half Facepiece Reusable Respirator 6500QL Series features the convenient quick latch drop-down mechanism for putting the facepiece on and taking it off while moving in and out of contaminated areas. Designed for comfort, durability and stability with a firm, lightly textured silicone faceseal. 3M™ 6500QL Series is NIOSH-approved with a wide variety of 3M bayonet-style filters and cartridges.