What are the medical breathing tube equipment?

No, the general breathing tube is used to float on the water. On the one hand, lying on the water is more labor-saving, on the other hand, it is convenient for you to observe the creatures in the water. After diving into the water, some breathing tubes have one-way valves to prevent water from pouring into the breathing tubes; However, after short-term training, the water in the breathing tube will not be scary. Breathing tube can't breathe in water, and can only be used when floating on water. Some fishermen use long breathing tubes, such as Japanese "sea girls" and pearl pickers. They can breathe with breathing tubes, but these breathing tubes are special and ordinary people can't use them. I hope I can help you.