- 50 piece per box
- Fluid resistant
- 3-ply filtration
- PM 2.5 prevention
- For medical use
Made of high-quality cotton and non-woven filter colth, the 3-ply filtration, system of the safety mouth cover effectively prevents dust, PM 2.5 and a series of airborne pollutants. Multiple protections to block dust, harmful substances, gases, odors and reduce infections