with ce 30pcs anti-dust and flu, virus, smoke kn95 n95 mask protection dhl ing

made of high-quality cotton and non-woven filter cloth, the 4-layer filtration. system of the safety mouth covers effectively prevents dust, pm 2.5 and a series of airborne pollutants. multiple protections to block dust, harmful substances, gases and odors, and reduce infections.we are factory direct selling with price and fastest delivery. moq:30pcs per lot.