Sell 10pcs per BOX KN95 4PLY Disposable Mask no Valve best price

n general, KN95 refers to masks (respirators) with a filtration efficiency of non-oily particles ≥95. Medical respirator/medical KN95 takes into account the special requirements of the medical environment, adding liquid barrier requirements on the basis of filtration efficiency of non-oily particles ≥95. The specific technical requirements and test methods of the filtration efficiency of non-oily particles in N95 and KN95 standards are basically the same, and the protective effect is basically the same, but it belongs to the standards of different countries. KN95: generally refers to the masks that reach the KN95 level and meet the medical standards; By our standards, it should be KN95 certified by FDA. Instruction for use: 1. Open the packaging and place the mask over your nose and mouth. 2. Pull the side straps over your left and right ears. 3. Adjust the nose lift around the bridge of your nose and press it down to fit the shape of your nose. Storing Condition: condition of temperature -20C to 38C. Storing condition of humidity <80% JAPAN TECHNOLOGY applied, therefore it is safe and breathable. Specification: First layer: 50g 3S non-woven fabric Second layer: 25g 95 melt-blown Third layer: 25 g 95 velvet spray cloth Fourth layer: 30 grams of ES hot air cotton