Steelpro M920 has been designed with comfort in mind. It has a “flanged” edge all around the full circumference of the masks as some users prefer this seal to the face. We also chose to change the inside nosepiece to a thinner and longer PVC foam, which some wearers also prefer for additional comfort. Adjustable aluminium nose clip is there to ensure excellent fit. The maintenance-free respirator provides effective and comfortable respiratory protection against solid and liquid particles without oil. Protects against viruses such as tuberculosis and influenza.