Shipping is free
Five layers filtration system for protection against harmful bacteria and fluids.
Executive Standard: GB2626-2006
PFE > 95% BFE > 95%
Multiple layer and superior quality - internal hydrophilic layer + filter layer + hydrophobic layer. Made of high quality material, safe, soft and comfortable.
Filtering Effect Greater Than Or Equal To 95%
Leak-proof, Anti-Droplets, Antibacterial