3M 9928 FFP2 Welding Fume Mask Features: 3M™ Welding Particle Respirator 9928 provides lightweight, effective, comfortable, and hygienic protection against dust, mist, and metal fumes, and is resistant to blockage caused by welding fumes during long-term use. These respirators offer protection against ozone, welding fumes, and hazardous odors, especially in welding applications.