Nasal artificial ventilation mask artificial ventilationrubber

features 1 Made of high-quality liquid medical silicone rubber and suitable for facial features. It will not be aging, hardening but comfortable and durable. 2 Sealing edge of contour line and head belt eliminate discomfort caused by the oppression to facial nerve. 3 The design of nasal part fits well with the nose and leaves little air blind angle, which limits breath of exhaust and increases comfort. 4 Comfortable, durable silicone skirt design, five points head belt, anti-fog design of standard nose and mouth cover. 5 Three sizes which can meet almost all type of faces and do not leak.