Many people do not forget that the ones masks have the equal filtering overall performance as N95 masks intended for clinical use, but it's far now now no longer the case. FANGTIAN FANGTIAN N95 review plastic nose clips feature metal wire for a better seal. Small N95 masks size small a recent study indicated that routinely washed cotton masks can prevent against COVID-19 spread. Type N95 face mask into your favorite search engine. When to wear a mask: This grade is given to masks that are capable of blocking 95 percent of the PM2.5.