From all the test result, N95 is good enough for filtering most of the PM2.5 particles, but sensitive persons can consider using N99 version of those masks (N99
May 14, 2020 Here are online stores selling face masks and cloth coverings in Each mask has a multilayer PM2.5 filter, which the company notes They're machine washable up to 30 times and are made at an FDA-registered facility.
Kasfam Face mask, Anti PM2.5 activated carbon mask Filter face masks with 3.0 breathing valve for cycling MTB: Amazon.co.uk: Kitchen & Home.
Apr 27, 2020 A face mask shields against hazardous PM2.5 dust, along with the Apparel makers are keeping employees engaged with a new opportunity.
Apr 2, 2020 DIY coronavirus mask instructions from crafters and doctors. a grassroots movement of crafters, designers and manufacturers like Ikea is working to supply hospitals with face masks. How to make a N95 PM2.5 face mask.KN95 Face Mask>heavy duty industrial gas mask with high quality size