ASTM Level 1 Disposable Mask - 1 box (50Pcs/Box)

50 Pack disposable blue face masks breathable dust filter masks mouth cover masks with elastic ear loop. Good for dust, smoke, pollution, ash. 3 Layer constructions also can provide warm face protection in cold weather. The disposable masks are suitable for electronic manufacturing, dust-free workshops, catering services, food processing, schools, motorcycles, public occasions and many other uses.  About this item These masks are class 1 medical devices, and can be used for healthcare use, but should not be used in surgical or high-risk situations, or where there is a high risk of contact with liquids or infectious materials Disposable Sanitary Face Mask 3-Layers of Non-Woven Fiber Fabric to Provide Fine Filtration and Maximum Breath-ability Comfortable to Wear for Hours and Maximize the Protection at the Same Time Material description and Key Features: 95% filtration of 0.3 particles Reduces exposure to blood and body fluids Minimized contamination from inhaled microorganisms. Late