Size:178*90mm
Material:PP Non woven +MB filter +PP non woven
Features: Anti pm2.5,flu,pm2.5,virus,dust,pollen,etc.
Advantage:1.Factory direct supply
2.OEM Available.
3.Double nose bar.Low breathing resistance,high filtration efficiency
4.GMP cleanroom
5.100 thousand grade clean room
6.PM2.5 certification
Sample: Sample is available and free.