Can wearing an oxygen bottle when diving in the sea choke the seawater?

No. When you dive in the sea, you must wear an oxygen bottle. Wearing an oxygen bottle when diving in the sea won't choke the seawater, and there will be an oxygen pipeline corresponding to the oxygen bottle, which will directly send oxygen into your mouth through the pipeline. Oxygen cylinder is a high-pressure container for storing and transporting oxygen, which is generally made of alloy structural steel by hot stamping and is cylindrical.