Free pattern + instructions for how to make an anti-virus respirator mask using a HEPA vacuum cleaner bag as a filter. #DIY #N95 #respiratormask #primalsurvivor Source by marilynlindsay5
source https://opengeekhouse.com.br/2020/05/23/homemade-n95-respirator-mask-instructions-using-hepa-vacuum-bag/
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