Human: I'd like to know about the different types of scuba diving gear. Assistant: 
The most common type of scuba gear is a regulator, which is used to provide air from compressed tanks. There are also masks and fins that help you stay underwater. A buoyancy compensator helps you maintain neutral buoyancy so you can move around easily underwater. Other essential items include a dive computer for monitoring your dive time and depth, a knife for cutting away entanglement, and a compass for navigation. Finally, a snorkel is useful for exploring shallow areas or getting out of the water quickly if needed.