• Multiple application: Suitable for use in schools, offices, construction sites, factories, laboratories and other scenarios.
• Material: These masks are made of 3 layers.
• First layer is made of non-woven fabric that can effectively filter particulate pollutants in the air.
• Second layer is made of Meltblown cloth that effectively keep away from impurities.
• Third layer is made of Skin-friendly filter cotton which is gentle and more breathable.
• 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.