Factory Wholesale Anti Cold Black Cotton Reusable Dust Washable Cotton Face Mask

OEM and ODM face mask – Made of multi-layered nonpoisonous, non-allergic, non-stimulating materials, Very low resistance to breathing, free from foreign smell, without any stimulating feeling. Use ultrasonic welding technology, adapts for high-humidity and fuggy sites, especially good for manual workers. An adjustable nosepiece ensures comfortable wearing. The static dealt filter lays, can soundly obstruct low-toxicity gas, filter orange gas, sour odor, and fine dust. Application: Widely used in Buildings, Mining, Weaving, Polishing, Pharmacy, Hardware, Cement, etc. Factory Wholesale Anti Cold Black Cotton Reusable Dust Washable Cotton Face Mask