- size 95*175mm,
- 20gsm surface fabric, PP material,
- 25gsm melt blown fabric,
(Melt blown fabric filtration efficiency â?¥ 99%)
- 25gsm bottom fabric, PP material,
- plastic nose clip 105mm
- ear loops 165x3mm.
- Vadility three years
- Tested and compliant with GB/T32610-2016