Comfort-Air Organic Vapor Filter Cartridge, 3 Pair/bx are APF 10 with a half mask or APF 50 with a full face. Unique "Saf-Twist" design quickly attaches to any Dentec Safety half-mask or full-face air-purifying respirator Facepiece. The offset connector improves visibility and allows face shields or welding helmets to be worn without interference.
Unique space plenums allow user to access the entire filter material reducing breathing resistance, providing longer cartridge life, reducing costs, and improving productivity.  Offset connector allows the user to rotate the cartridge into 3 different positions improves visibility and allows face shields or welding helmets to be worn without interference.