Steve Kirsch: N95 masks and below don't work. If you are serious about PPE, you'll want to wear a respirator with at least a P-100 filter. But even that won't guarantee you won't get infected. But this will. And it costs about $8,000 USD and the filters are around $150 each. It also requires 8-AA batteries but breathing is very easy and no CO2 buildup. This is a great example of getting what you pay for.
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