Fluid resistant protective mask (not for medical purpose). Non-woven fabric, meltblown. Non-valved, very close facial fit, easy to breathe through. Standard: GB2626-2006. PFE ≥ 95%.
Particle Filtration Efficiency (PFE) is the effectiveness of a material to filter aerosol particles in the maximum size of 0.3 µm. This is expressed as a percentage of a quantity that does not pass through the material.
Usage time max 8 hours.