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N95 vs N99 vs SN98: Which Mask Actually Works?
What's the real difference between an N95, an N99, and that SN-98 mask that was everywhere during COVID? This episode breaks down the NIOSH classifications, the breathing resistance tradeoffs, and why filtration numbers only tell part of the story. We cover why fit is the most important factor, how facial hair and glasses can defeat even the best mask, and where the line is between disposables and a proper elastomeric respirator. Plus: the social dimension of wearing respiratory protection, why exhalation valves matter, and the uncomfortable truth about counterfeit masks and the "wild west"…
The skinny
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