generic flap valve by Dragonsfire 3d model
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Thingiverse
generic flap valve by Dragonsfire

generic flap valve by Dragonsfire

by Thingiverse
Last crawled date: 4 years, 2 months ago
This was designed to fit into a cloth mask that is being worn over an N95 mask. Lengthening the service life of the N95. It has not been tested or approved.

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