The 3m 80921 Full Facepiece Reusable Respirator, also called the 3m N95 filter, is lightweight and comfortable to wear. It includes a cushioned nose and chin cup and an adjustable head strap to ensure a snug fit with any user’s face. The 3m n95 filter cartridge can filter out more than 97% of airborne particles, including dust, mists, fumes, and microorganisms that have a diameter of 0.3 microns or larger.
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I’d say the best review I’ve seen ! Thank you!