Compared： KN90:over 90% filter and with inside the respirator VALVE,Smooth breathing.equivalent to N90 KN95:over 95% filter equivalent to N95 ffp2 close to ffp3 1.Certified KN90 for at least 90 percent filtration efficiency against solid and liquid aerosols that do not contain oil. 2.COOL FLOW VALVE helps reduce heat build-up inside the respirator.Also helps protect against particles such as , allergens and dust pollution. 3.The outer layer USES 25 grams of polypropylene nonwoven fabric, unique non-woven fabric texture, which can effectively prevent and block airborne dust under 5um. The middle layer USES 20 grams of effective microfiltration cloth. The multilayer structure effectively blocks the filtration of air dust. 4.Custom Fit: Adjustable nose clip helps provide a secure seal. Cushioning foam for added comfort on the nose.Secure Seal: Two-strap design with dual point attachment helps provide a secure seal. First of all, We declare here,we bought it through standard channels. for features 4 foam pad,9001V is indeed not have,but 9501 have this Cushioning foam.
Are a class of health products used to restore or maintain good health. These include vitamin and mineral supplements, herbal remedies, traditional and homeopathic medicines, probiotics and enzymes.