Most divers are aware of the problems associated with flying after diving, but seldom give much thought to what can happen while they’re up in the air before going diving; not least is the risk of catching that most common of all contraindications to diving fitness: a cold.
At depth, you shouldn’t count on your dive buddy to be arms’ length away when you find yourself in a jam while scuba diving. Learning how to rely on yourself first and your buddy second is going to radically improve your chances for avoiding panic — and maybe even survival.
A modern scuba diving regulator is an extremely reliable mechanism. So reliable, in fact, that keep on delivering air year after year. But you can do a few simple things to help ensure your reg's performance. Here are our tips, plus the latest regs on dive store shelves today.
An algorithm is the mathematical formula a dive computer uses that factors in real-time measurements of depth, gas mix, time at depth—and, depending on the algorithm, potentially lots of other data—to calculate how long you can stay under water with a reasonable degree of assurance that you won’t get hit with decompression sickness (DCS).
Buying your first scuba diving mask? Ideally, you'd be able to try various models on while in the water. If that's not practical or possible, follow our dry-fit tips for finding the mask that's perfect for your face.