Portable oxygen tank to apply for what documents

Portable oxygen tanks should apply for medical device registration certificate. Portable oxygen respirator belongs to the second class of medical devices, need to apply for medical device registration certificate and other approval procedures before going on sale. Oxygen tank, as the name suggests, is used to fill the tank of oxygen, also known as portable oxygen absorber and small canisters of oxygen, with high oxygen content and small size and easy to carry and easy to use is a new type of green health supplies.