- 145×90mm (suitable for kids and ladies with small face)
- 50pcs individual pack
- ASTM Level 2 (BFE, PFE≥98%)
- Clean Room
- UV+Ozone Disinfectioin
- factories reach ISO9001 standard
- 3 layers
- outer: waterproof non-woven fabric
- mid: Meltblown non-woven fabric
- inner: Hygroscopic non-woven fabric