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Ok so N95 is the USA high particle elimination standard And KN95 is the China high particle elimination standard But If you're in Canada And you buy an N95 mask What does that... mean Does it mean the US government approved it Or can Canada approve N95 too. Is this NAFTA
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3M masks with replaceable filters are really nice since rubber seals far better while being a lot more comfortable. They all have exhaust valves but a lot of them make it easy to seal it. It's unfortunate they didn't make new variants of these industrial ones meant for COVID-19.
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