Product Name: Self Priming Mask Specification: CE Origin: Dalian China Product Description Self priming MASKHigh-temperature disinfection is safer. Reusable for lower cost.Four-layer filtration for higher protection.Silicone material is more comfortableThe S9 mask can be used cyclically for more than two years, and the filter element (3 yuan / piece) can be used for one month.During the epidemic of Virus people who have been exposed to the outdoors for a long time are advised to change one piece a day, and those who work indoors or have less time outdoors can change one piece for 3-5 days. Therefore, a mask can solve the long-term protection for a person. According to the national standard, the filter material of the S9 mask is tested to obtain a filtration efficiency of 98.4%, The bacterial filtration rate is more than 99% ,It's completely up to national standards! The silicone material of baby pacifier grade is fit to the face, skin-friendly, leak-proof, safe and comfortable, which is beyond the reach of ordinary masks.The food-grade liquid silicone cover with patented technologyis tight protection, comfortable wearing and can be reused. The filter element is made of four layers of filtering and sterilizing materials, which makes the filtering effect high, easy to disassemble, and reuse after sterilizing and disinfecting. High-temperature disinfection is safer. Reusable for lower cost.Four-layer filtration for higher protection.Silicone material is more comfortableThe S9 mask can be used cyclically for more than two years, and the filter element (3 yuan / piece) can be used for one month.During the epidemic of Viru, people who have been exposed to the outdoors for a long time are advised to change one piece a day, and those who work indoors or have less time outdoors can change one piece for 3-5 days. Therefore, a mask can solve the long-term protection for a person. According to the national standard, the filter material of the S9 mask is tested to obtain a filtration efficiency of 98.4%, The bacterial filtration rate is more than 99% ,It's completely up to national standards! The silicone material of baby pacifier grade is fit to the face, skin-friendly, leak-proof, safe and comfortable, which is beyond the reach of ordinary masks.The food-grade liquid silicone cover with patented technologyis tight protection, comfortable wearing and can be reused. The filter element is made of four layers of filtering and sterilizing materials, which makes the filtering effect high, easy to disassemble, and reuse after sterilizing and disinfecting.