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COVID-19 Mask respirator with exhalation valve

COVID-19 Mask respirator with exhalation valve

thingiverse

Printing with 60% fill. After the exhale valve, a filter made from a cotton disk must be installed. Before the inhale valve, install a filter. Following printing of the exhale valve, process the valve by applying rubber or lubricating it with a thin layer of sealant for better adhesion. Then attach the valve body to the mask housing, drilling 5mm holes for air in the mask.

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