FastCap's MXV dust masks feature an Easy Breathe exhale valve that directs your breath down and away from your safety glasses for fog-free performance. The masks fold flat, so they can be stored in a pocket, and resused later, and feature a high-quality filtration system with an N95 rating–perfect for general purpose, non-toxic applications where dust and particles are present in the air. The extra thick straps, generous foam and adjustable nosepiece maintain a superior seal around the bridge of your nose, which also contributes to less fogging and better filtration. Sold in packs of ten.