A backplate and wing (often abbreviated as BP&W or BP/W) is a type of scuba harness with an attached buoyancy compensation device (BCD) which establishes neutral buoyancy underwater and positive buoyancy on the surface. Unlike most other BCDs, the backplate and wing is a modular system, in that it consists of separable components. The core components of this system are:
Breathing elevated concentrations of oxygen is beneficial in the treatment of many scuba diving ailments.
Oxygen breathing will increase the oxygenation of any hypoxic body tissues and also help to flush out any dissolved nitrogen and nitrogen present in bubbles.
The average diver sightseeing at 30 feet in warm, calm seas can expect an average tank of air to last about an hour. But as any diver can tell you, our sport is anything but average. Deeper dives, stronger currents and chilly water can drastically reduce bottom time. New divers, a little panicky and prone to “panting” rather than easy breathing, have been known to suck a tank dry in 15 minutes.
Lionfish carry a deadly poison in their spines. Lionfish are not poisonous, they are venomous. The difference between poison and venom is the method of delivery. Venom must be injected into the bloodstream to cause injury, such as through a sharp spine or fang, but is harmless if drunk or eaten.