Medical mask Adult Size

Disposable 3-ply protective medical mask
ASTM Level 3 PFE（Particle Filtration Efficiency）≥99%BFE（Bacterial Filtration Efficiency）≥99%VFE (Viral Filtration Efficiency) ≥99%Differential pressure (Delta-P) 3.2 mm H2O/cm2; 31.3 Pa/cm2
Size: 17.5 x 9.5cm
Color: Cotton Candy
Quality: 7pcs
Origin: Hong Kong