3M 9541 KN95 Particulate Respirator Face Mask, Brand new , in stock, ship immediately, Nuisance Level Organic Vapor Relief , Activated Carbon, Elastic Earloop, No Valve, On FDA EUA list, individually sealed Manufacturer : 3M Model: 3M 9541 Filter effect: 95% 3D design with 5 layers protection, It is very good for people who are sensitive to smell because activated Carbon absorbs odor and filters out organic vapor. provide strong protection against the spread of viruses and bacteria.