Using shrimp and crab shells and sugars from corn starch and sugarcane, Nguyen Hoang Chinh (31) has created antibacterial, self-decomposing facemasks that can filter fine particles and droplets less than 2.5 micrometers.

New report says, over 70% of imported KN95 masks, mostly from China, fail U.S. filtration standards.

Researchers at Duke University in the US launched an experiment to determine which types of masks are quite literally useless in shielding people from Covid-19  and the results call out: Gaiter, folded bandanas and knitted ones.