Aqualung
The main piece of scuba gear is the Aqualung. The Aqualung consists of three parts. The air cylinder is made of steel or aluminum and carries about 200 Bars of compressed air. The regulator is the most critical piece of gear. It adjusts the pressure of the air to match the pressure of the outside water allowing the air to be fed into the mask area on demand. The third part of the gear is the harness which fastens the air tank to the diver.



