The 7500 Series offers exceptionally high levels of wearer comfort and a good fit across a broad range of face shapes & sizes. Suitable for a broad range of industrial applications, the innovative comfort features help to ensure that the respirator is worn consistently over long periods. For a reusable respirator that’s comfortable to wear, use 3M™ Reusable Half Face Mask 7501. The facepiece has a soft sealing surface that’s been specially designed with the end-user in mind. Our small-size half-face mask features the 3M™ Cool Flow™ Valve to reduce heat build-up by allowing warm, exhaled air to escape. And with low breathing resistance, it’s comfortable to wear and work in for many hours at a time.