Product introduction N95 respirators are one of nine respirators certified by the NIOSH(National Institute for Occupational Safety and Health) for particulate matter.N95 is not a specific product name, as long as it meets the N95 standard and passes the NIOSH review, it can be called N95 mask, and can filter particles with aerodynamic diameter of 0.075 m卤0.020 m with efficiency of more than 95%. Product parameters Product NameProtective Mask Material:non-woven fabrics/Melt-blown fabric/ mask belt Function:anti-virus, anti dust, anti droplets etc. BFE锛?5% Standard:NIOSH approved ColorWhite Packing20pcs/box, 240pcs/carton 60Dimension60*50*32CM Stock100,000pcs Delivery time1-4 week PaymentT/T Product details Packaging and shipping Custom packaging is welcomed . 2 pcs/bag, 10 pcs/color box, 1000pcs/carton or we can do customized package. Precautions for use 1) Wash your hands before wearing a mask, or avoid touching the inside of the mask with your hands during the process of wearing a mask to reduce the possibility of contamination of the mask. 2) Distinguish the inside and outside, up and down of the mask 3) Do not squeeze the mask with your hands. N95 masks can only isolate the virus on the surface of the mask. If you squeeze the mask with your hands, the virus will soak through the mask with droplets, which will easily cause virus infection. 4) Try to make the mask fit the face well. The simple test method is: After putting on the mask, exhale forcefully so that air cannot leak from the edge of the mask. 5) The protective mask must be close to the face of the user. The user must shave the beard to ensure that the mask can be tightly attached to the face. The beard and anything placed between the mask gasket and the face will cause the mask to leak. 6) After adjusting the position of the mask according to your face shape, use the index fingers of both hands to press the nose clip along the upper edge of the mask to make it close to the face. When the following situations occur, the mask should be replaced in time 1. When the respiratory impedance increases significantly; 2. When the mask is broken or damaged; 3. When the mask and face cannot be closely attached; 4. The mask is contaminated (if it is stained with foreign objects such as blood stains or droplets); 5. The mask has been contaminated (used in individual wards or in contact with patients); 6. If the mask contains activated carbon, when there is a peculiar smell in the mask; 7. When the mask is used for longer than the recommended time. FAQMasks Made in China website:http://www.siyunshengwu.com/medical-product/masks/