As the name suggests, oxygen bag is a bag used to contain oxygen, which is mainly composed of non-toxic and non harmful chemical materials. The oxygen bag is easy to carry and operate, and can be used for family health care, as well as for emergency transportation in medical units. Usually, there is a rubber tube on the oxygen bag with a regulator on it, which can adjust the flow and the oxygen filled into the oxygen bag. The oxygen bag is used to store oxygen. If the sealing is not good, it will cause oxygen leakage and affect the user's use. Therefore, oxygen bag manufacturers will conduct air tightness tests on them.