Scuba, which stands for "self-contained underwater breathing apparatus," refers to a type of diving where the diver can breathe underwater without a line to the top. This allows divers to explore oceans and lakes freely for longer periods of time without having to surface. The equipment used for a dive varies depending on the nature of the dive. You may need camera gear if you want to take pictures or thermal gear if you plan to dive in icy waters. Some equipment is standard regardless of the type of dive you are doing.
Snorkel, Mask and Fins
A snorkel, mask and fins enable you to see where you are going, breathe when you are close to the surface and swim using only your legs. A snorkel is not required, but it helps you conserve air from your tank if you are swimming along the top of the water.
Exposure Protection
Water takes heat from your body 20 times faster than air at the same temperature. Temperatures that would feel comfortable in the air can be dangerous under the water unless you are protected. Wearing a suit to protect yourself against the cold and scrapes or stings will keep you safe. Dry suits offer superior insulation but a wetsuit is sufficient for most dives.
Diving Weights
It is necessary to offset the buoyancy of your tank, gear and body when scuba diving. Wearing weights is the way to do it. Weights can be worn in a belt, harness or as part of a diving suit. The object of weights is not to sink like a stone but to be able to swim gently down as you like.
Regulator and Tank
A scuba tank is a high-pressure, compressed gas cylinder that holds your air. It is usually made from aluminum and is worn on the back like a backpack.A regulator fits in the mouth and takes air from the tank when you take a breath. It has a gauge attached to let you know how much air you have left at all times.
BCD
A buoyancy control device is an inflatable jacket that holds your scuba gear together. The BCD allows you to control buoyancy by adding or releasing air so you can either float or swim.
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