3 layer Protective Surgical Medical Respiratory Face Masks 99% BFE lot of 50 pcs

Made of high-quality cotton and non-woven meltblown filter cloth, the three-layer filtration system effectively prevents PM 2.5 and a series of airborne pollutants. They filter out pollution, dust, pollen and bacteria to protect your respiratory system and health. Multiple protections to isolate dust, multiple layers of folding, and good ventilation, Three-layer protective structure 1. PP water-repellent non-woven fabric fiber material to prevent water vapor from penetrating. The composite fiber can absorb the condensed water vapor generated during breathing, and it is still dry for a long time. 2.MB electrostatic filter layer can effectively block 3um particles more than 99% 3. Skin-friendly composite fiber, which can absorb the condensed moisture generated during breathing, and it is dry and comfortable for a long time When working outdoors, our masks filter out allergens that can aggravate airway diseases