A Buoyancy Control System is designed to provide sufficient:

A Buoyancy Control System is crucial for a diver's ability to maintain neutral buoyancy, which is essential for safe and effective diving. The system is designed to provide sufficient lift capacity, allowing divers to manage their buoyancy underwater effectively. This lift capacity is achieved through the use of inflatable devices, such as a buoyancy control device (BCD), which can be adjusted by adding or releasing air.

Having adequate lift capacity enables divers to ascend, descend, or hover at desired depths without expending excessive energy. This control over buoyancy allows for improved air consumption, better overall comfort during the dive, and enhanced safety by preventing uncontrolled ascents or descents. While comfort and other factors matter, the primary function of a Buoyancy Control System is to ensure that divers can manage their buoyancy effectively through adequate lift capacity.