The company 3M dust masks, quality assurance, welcome to consult the discussion. 

 Product Description: 



 【Uses】 suitable for construction, quarry, textile, grinding, metal casting, pharmaceutical, electronics, pharmaceutical, material handling and polishing dust generated by operations such as protection and other industries. Dust to dust storm has a good effect. 
 【Usage】 masks can be used to it damaged by contaminated blood or body fluids so far, or abide by the relevant guidelines obsolete. In addition, masks should be stored in a clean environment, protect against damage, dirt, dust, direct sunlight, heat and pollution, harmful chemicals, but also to avoid a face mask when stored deformation. 
 【Note】 microwave disinfection can not be used because the metal nose clip, and is glued to the mask on, after the basic microwave oven can not be used again.