The features of these surgical masks are as follows:
- Non-sterile,manufactured by BYD precision manufacture co. ltd ;
- High bacteria and particle filtration efficiency: at least 99%, meet the requirement of ASTM Level 3;
- Fluid-resistant: reduces the potential exposure to blood and body fluids;
- Low respiratory resistance: thin and light multi-layer design reduces respiratory resistance inside and outside of the mask;
- Perfect fit the face: 3d modeling design and adjustable nose clip ensures a tight fit to less the leakage;
- Safety and health: conforms to China surgical masks standard YY/T0469-2011.
- These masks can not be returned.