KEEOLIFE Surgical 4 Ply Face Mask KF-SM4-EL Surgical Mask With Meltblown Fabric Layer (Blue, Free Size, Pack of 50, 4 Ply)

4 ply Surgical Mask with 2 layers of Melt blown to provide extra safety to the wearer. ASTM F2100-19 Level 3 FDA EUA Certified, Health Care Canada Certified, EN14683:2019 Type IIR, IS 16289:2014 Class 3 Surgical Mask, Splash Resistance pass at 160 mmHg, Bacteria Filtering Efficiency >=99%, Particulate Filtering Efficiency >=98%