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Jul 21, 2020 - 10:45 AM
Hello. The main filter is replaceable and the port valve has a built-in plastic filter.
Thanks.
Thanks.
ARE THE VALVES ON THE MASK 2 WAY? DO THEY HAVE FILTER INT HE VALVE SO NO PARTICLES GET IN?
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Open Jul 18, 2020 - 11:08 AM
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Washable Face Mask Reuseable Cotton three layers w valve and PM2.5 Filter
Washable Face Mask Reuseable - Has three layers of cotton with valve and PM2.5 Filter The CDC (Center for Disease Control) recommends: The Use of Cloth Face Coverings to Help Slow the Spread of COVID-19. Aerosolized coronavirus can remain in the air for up to three hours. (source: Harvar...
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