Liberty 3-Ply Third Party Certified Level 3 Surgical Mask. Latex-free round-Lycra elastic ear loops. Comfortable inner elastic sealing. 10 mm PP side banding provides strong elastic attachment. Malleable PVC coated aluminum nose-clip prevents air leakage. 3-Ply construction, High bacteria-filtration (NLT 98%). Low breathing-resistance (NMT 49 O Pascal/cm2). 95x5mm. Must purchase in lots of 50. One Size Fits All. Color: Light Blue. DUE TO HEALTH AND SAFETY CONCERNS, WE CANNOT ACCEPT RETURNS ON ANY FACE MASKS OR COVERINGS. MUST BE ORDERED IN INCREMENTS OF 50. Please Note: ACC nor its vendors make any warranties, either express or implied, that the mask/covering prevents infection or the transmission of viruses or diseases.