human
I'd like to know about the different types of scuba diving gear.
assistant
Scuba diving equipment is typically divided into two categories: surface supplied and self-contained. In a surface supplied system, air tanks are connected to the diver's regulator by a hose that allows the diver to breathe from above the water. A self-contained system consists of a tank with an integrated regulator that provides air directly to the diver's mouthpiece. Both systems allow divers to stay underwater for extended periods of time, but the self-contained system offers greater freedom of movement due to its smaller size and weight.