I’m sure that everyone of you had questions about reducing air consumption before. If you are already able to answer the question with respect to depth, pressure and temperature, then you are half way there. This topic can be a bit dry but it is really important.
Even in diving we can’t get around a few physical laws. The knowledge of this laws is crucial for a PADI Divemaster because they influence your air supply and affect the air spaces within your body such as ears, lungs and sinuses.