Latex free round lycra elastic. 7.5": elongation 1:2. Inside elastic sealing for comfort and neater packing. Easier and quicker to wear than tie-on masks. International mask size: 175 x 95mm. 10mm PP side banding provides strong elastic attachment. Malleable PVC/PE coated aluminum nose-clip prevents air leakage. Test reports from nelson labs (USA) & SITRA India for independent verification. High bacteria/particle/viral filtration levels (>95%, >98%). Low breathing resistance (delta P <29, 4pa). Fluid repellent masks available (4-ply:splash resistance >120mmhg). Packing in PP bags or duplex dispensers. OEM facility available on bulk orders.