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Repost from @wsj

“It will take 25 hours for an infectious dose of Covid-19 to transmit between people wearing non-fit-tested N95 respirators. If they’re using tightly sealed N95s-where only 1% of particles enter the facepiece-they will have 2,500 hours of protection.”

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Envo Mask
Envo®mask is manufactured by Sleepnet Corporation, a world leading producer of sleep apnea and non-invasive ventilation masks. All our masks are made in the USA with US and globally sourced materials. For more than 25 years, Sleepnet has been manufacturing masks in Hampton, NH, and selling them worldwide in over 50 countries.
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Envo Mask
Envo Mask

Envo®mask is manufactured by Sleepnet Corporation, a world leading producer of sleep apnea and non-invasive ventilation masks. All our masks are made in the USA with US and globally sourced materials. For more than 25 years, Sleepnet has been manufacturing masks in Hampton, NH, and selling them worldwide in over 50 countries.

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