Standard Oxygen Mask – Medium-Concentration w/ 7ft (2.1 m) Tubing with Standard Connector – Adult

Dynarex Resp-O2 Medium-Concentration Masks are designed to effectively deliver oxygen at a concentration rate of 40% to 50%. These masks come with light green oxygen supply tubing, designed to help improve tube visibility. Dynarex Resp-O2 Medium-Concentration Masks are designed to effectively deliver oxygen at a concentration rate of 40% to 50%. These masks come with light green oxygen supply tubing, designed to help improve tube visibility.