What is the 120 rule in scuba diving?
Here’s how it works: Your max depth (in feet) + your bottom time (in minutes) should be less than or equal to 120. That’s it. So if you plan to dive to 60 feet, the rule says you shouldn’t stay down longer than 60 minutes. The most important rule in scuba diving is to always breathe continuously and never hold your breath to avoid lung over-expansion injuries. Another important rule is that divers should ascend slowly and safely to prevent decompression sickness.Drowning. Scuba diving takes place in the water therefore drowning is an obvious risk. Drowning is the most common cause of scuba diving deaths. Divers drown due to running out of air, panic, lack of training, unrelated health problems that cause unconsciousness and equipment failure.