From the time when the Centers for Disease Control and Prevention has recommended to use cotton cloth face masks for the general public for the better protection, the demand of this special mask went viral and trending over internet. As we know there are some safe ways to properly wear and remove face masks in […]
How are surgical masks and respirator filters tested? Respirator filters must meet stringent certification tests (42 CFR Part 84) established by NIOSH. The NIOSH tests use what are considered “worst case” parameters, including: A sodium chloride (for N-series filters) or a dioctyl phthalate oil (for R- and P-series filters) test aerosol with a mass median […]
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