Filtering Respirator Filtering respirators are designed to reduce inhalation exposure to particulate contaminants. In general industry, these respirators are used to decrease exposure to particulates such as wood dust, animal dander, and pollen. More recently, health care facilities have been using N-95 filtering facepiece respirators as part of their tuberculosis infection control program. Health Care Workers use them for protection from infectious aerosolized droplets released from sick patients. Material of 5 layer Filtering respirator LayerMaterialWeight (g)Percentage 1st layerNon-woven fabric5527% 2nd layerMelt-blown fabric2512% 3rd layerHot air cotton5024% 4th layerMelt-blown fabric2512% 5th layerNon-woven fabric5024% Testing data of Filtering respirator Testing ItemsRequirement Formaldehyde content鈮?0 mg/kg PH Value4.0~7.5 Ethylene oxide residue鈮?0渭g/g Bacterial filtration efficiency(BFE)鈮?5% Particulate matter filtration efficiency(PFE)鈮?0% Ventilation resistance鈮?0Pa Breaking strength of the mask belt and the joint between the mask belt and the mask body鈮?0N Heavy metal contentArsenic鈮?.2mg/kg Cadmium鈮?.1 mg/kg Cobalt鈮?.0 mg/kg Chromium鈮?.0 mg/kg Copper鈮?5.03 mg/kg Nickel鈮?.0 mg/kg Lead鈮?.2 mg/kg Antimony鈮?0.0 mg/kg Microbial indexColiform groupNo Pathogenic pyogenic bacteriaNo Total fungal colonies鈮?00CFU/g Total bacterial colonies鈮?00CFU/g Vision under mask鈮?0掳 Precautions for wearing KN95 mask: 1. Wash your hands before wearing a mask, or avoid touching the inner side of the mask while wearing a mask to reduce the possibility of contamination of the mask. 2. Distinguish the inside, outside, top and bottom of the mask; the KN95 mask has the printed side as the outside; one end of the metal strip/sponge strip is above the mask. 3. Do not squeeze the mask with your hands. The mask 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 the droplets, and you may get the virus. 4. Try to make the mask and the face have a good fit. The simple test method is: After putting on the mask, exhale forcefully so that air cannot leak from the edge of the mask. FAQ 1.Where is your factory located? How can I visit to your factory? A: Our factory locates in Weishi, Kaifeng, Henan Province, China. Welcome customers to visit our factory. 2.Do you have face mask in stock? A: Yes, we have. KN95 protective face maks have 1 million in stock, and disposable face mask has 2 million in stock. 3.What is your MOQ? A:MOQ is 200pcs. 4.Are your prices be honest without bargain space? A: Price depends on quantiry. The more quantity you order, the lower price it will be. 5.What is the delivery time? A: Delivery time depends on order quantity. Normally, delivery is as follows: 100,000 takes 1-2 days 500,000 takes 2-3 days 1,000,000 takes 3-5 days. As factory has orders from different customers, order has a sequence. But factory will arrange the earliest delivery time for every customers. 6.Can I place a face mask order now? A: Yes, you can. 7.Do you have any certificates? A: Youmaisi has passed CE certification. NB number is 2163, which is official PPE certification party.Wholesale Respirator website:http://www.facemaskmanufactures.com/respirator/