Self-priming filtering particulate valve; high-efficiency electrostatic filter cotton with low breathing resistance, filtering over 95% of non-oily particulates and dust; moldable nose clip for shaping to ensure a good seal at the bridge of the nose; internal sponge nose pad design to reduce pressure on the bridge of the nose for greater comfort; headband design that does not strain the ears; used for protection against particulates generated in construction, mining, casting, woodworking, electronics, pharmaceuticals, material handling, and grinding operations.