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Respirators meet the CDC Guidelines for Mycobacterium tuberculosis exposure control. They are certified by NIOSH as N95's and designed to provide a secure face to respirator seal. This seal helps reduce the wearer's exposure to airborne particles, making them appropriate for protection from laser and electrocautery plume.How to make an effective face mask at home Business InsiderIn 2006, researchers from the University of Pittsburgh shared with the CDC guidelines for making an effective face mask if surgical masks and N95 masks were unavailable during a viral outbreak.N95 Respirators and Surgical Masks (Face Masks) FDA

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