Surgical Tie On Mask Features & Benefits:
MaskEnomics Level 4. Exceeds ASTM's fluid-resistant performance class specifications as a moderate-barrier medical face mask: PFE 99% at 0.1 micron. Outer and inner fluid-resistant layers with white inner layer for sensitive skin. Extra-long tie-ons (laces) for secure fit. Sonically attached laces eliminate risk of pinholes associated with sewn laces. Full-length aluminum nosepiece. Not made with natural rubber latex.