human
I'd like to know about the different types of scuba diving gear.
assistant
Scuba diving gear can vary greatly depending on what type of diving you are doing, but there are generally two main categories: open circuit and closed circuit. Open circuit is used for recreational diving where you don't need to be connected to a tank of compressed air and can be used with any dive computer. Closed circuit is used by technical divers who require more oxygen than an open circuit system provides and must be connected to a pressurized air source. There are also several other specialized systems such as rebreathers that provide additional safety features and allow for deeper dives.