TROGE SURGI-FACE surgical face masks are made of white, non-woven polypropylene fibre and the outer surface is made of green non-woven polypropylene attached with four long non-tear tie strips. The integrated nose profile guarantees a close, secure fit to the wearer’s face. The asymmetric folds in the special 3-layer fabric provide very high breathability, preventing any un-pleasant and annoying heat and moisture entrapment. The bacteria retention capacity is 99%. Also available with two elastic ear loops made of polyurethane.