The best air filter for Coronavirus masks #covid19 #coronavirusmask
Today we touch on the subject of filter material for use in your Coronavirus masks. This applies to 3d printed masks, and face masks in general. When using furnace filters, it’s important to use one that does NOT contain fiberglass, and that is at LEAST a MERV 16 rating. To download the latest designs and …
The best air filter for Coronavirus masks #covid19 #coronavirusmask Read More »