Mate) is a world exclusive patented product developed in Canada and produced in the United States, which is suitable for fire scene, mine disaster, gas poisoning in pre-hospital and in-hospital and resuscitation of anesthetized patients. Product features and advantages:+pneumatic control, no need for any power supply+nitrous oxide to quickly remove harmful gases such as harmful CO gas in patients+nitrous oxide to quickly remove volatile anesthetics in patients undergoing surgical anesthesia, helping patients to wake up quickly+efficient and convenient, which is three times as effective as hyperbaric oxygen chamber treatment.