
Depth Range
The depth vary applicable to scuba diving depends on the Application of Diving and training , however most dives are shallower than 30m. Recreational diving limits decompression to no-stop dives or comparatively short planned decompression stops to minimize risk of aeroembolism. Recreational breathing machine is usually restricted to between thirty and 40m, reckoning on the certifying agency.Professional scuba diving additionally limits the allowed planned decompression reckoning on the code of practice, operational directives or statutory restrictions that apply.
Depth limits rely upon the jurisdiction, and most scuba diving depths allowed vary from 30m to quite 50m, reckoning on the respiration gas used and also the handiness of a decompression chamber on site.

Depths are restricted by physiological and logistic aspects - the amount of gas which will be carried, decompression necessities, gas toxicity at air mass and work of respiration constraints