Certified Water Technologist #63

Certified Water Technologist #63
Vern's Stories fredhorn37@gmail.com

N95 vs Coffee Filter


Which is a better face mask? N95 or a coffee filter.  

Smart Air Filters blog has an article discussing various materials to make diy masks from.  Here is the link to the article and a chart from the article is below. 

Effectiveness of DIY Mask Materials at Capturing 1.0 Micron Particles

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