buoyancy control device (BCD)

A buoyancy control device (BCD) is a vital piece of scuba diving equipment that helps divers manage their buoyancy underwater. It functions like adjustable air tanks worn around the torso, allowing divers to add or release air to ascend, descend, or maintain neutral buoyancy. When the diver wants to stay at a certain depth, they inflate or deflate the BCD accordingly. This control enhances safety and comfort during diving, enabling smooth movements and stable positioning underwater. Essentially, the BCD allows divers to finely tune their buoyancy levels, making underwater exploration easier and safer.