Supplier: Supplier whitelist high rating brand 100% medical mask brand: valve+ purism ffp2 nr 6 ply / ce 0598 / en149:2001+a1:2009>with our best spec:�¢?�¢bfe & pfe lab test results are 100% filtering. this test is carried out using the astm and en methods. �¢?�¢inhalation & exhalation test by nelson labs united states niosh method; pass. �¢?�¢sodium chloride (nacl) test by nelson labs united states niosh method; with,99.999% filtration. anti micro bacterials materials & superior for virus prevention.hypoallergenic non woven.fire retardant.water repellant & anti droplets one mask 1 ear loop extension special materials able to provide comfort when using masks for a long time.super breathable:thick material but feels very light when fitted on the face and it is very easy to breathe through as well.nose foam made by 100% polyurethane.