Simple Covid-19 Coffee Filter Mask
Description
Simple mask design that is intended to use Coffee Filters. Could use other filter paper or material as desired. Coffee Filter paper has potentially large pores > 20 microns. I use two filters. Use the inner ring to hold the filters in place by folding them back into the mask. Bring your own filter paper and elastic. Might need to be scaled when printing to fit your face. Units are Inches. If it doesn't work, you can always use it for a pour over.
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