Thingiverse
Filter sheet holder
di vmarsik
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Filter holder for a coronavirus mask. Originally created for https://www.thingiverse.com/thing:4222563 .
Having bought a roll of bulk anti-virus filter sheet, I have realized that the thin filter does not keep shape in the flow of air, deforms, and does not work anymore. This is why I made this insert, that forces it into a shape where a large area can be used.
Instructions:
* print two identical parts (they fit into eachother when rotated)
* cut proper width of your filter
* place one side of the filter at the edge and hold with your finger
* with a dull knife, push the filter into the first hole
* move your finger to the next blade and repeat
* close the holder with the second part
* insert the whole assembly into your respirator
Having bought a roll of bulk anti-virus filter sheet, I have realized that the thin filter does not keep shape in the flow of air, deforms, and does not work anymore. This is why I made this insert, that forces it into a shape where a large area can be used.
Instructions:
* print two identical parts (they fit into eachother when rotated)
* cut proper width of your filter
* place one side of the filter at the edge and hold with your finger
* with a dull knife, push the filter into the first hole
* move your finger to the next blade and repeat
* close the holder with the second part
* insert the whole assembly into your respirator
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