In scuba, why does the diver’s air get more compressed with depth? Does the tank not protect the air from outside forces?

Question

In scuba, why does the diver’s air get more compressed with depth? Does the tank not protect the air from outside forces?

In: Other

Answer 1

The air in the tank is already pressurized (compressed). The diver breathes through a regulator that lowers the tank air to the same pressure as the “outside forces”. That is why a tank of air will get used up faster the deeper the diver goes.