Why does a sea diver wear special diving suits
Answers
Answer: There are different diving suits used depending on the type of diving a person is doing. The main reason a diving suit is worn is to allow a person to retain their body heat. Water cools a body much faster than air so the colder the water is and the longer you are underwater, the more thermal protection is needed to prevent hypothermia.
Someone who is diving recreationally in warm waters (such as Floida, Caribbean, Figi, Pulau, etc) may not wear a suit at all or will wear a wetsuit. The wetsuit is made of neoprene or a similar material that has thousands of tiny airholes inside it. These airholes act as insulation. A wetsuit allows some water to get inside it at the wrist ankle and neck openings, hence the name.
Someone who is diving colder waters such as the Great Lakes typically wears a drysuit. A drysuit has seals that keep water from getting inside the suit and usually includes gloves, boots and a hood. The diver wears a thermal top and pants under the suit to keep warm. Some of these thermal garments even come with heating elements like those in an electric blanket that run through the fabric for diving in very cold waters.
Commercial divers (who do things like underwater construction or demolition and dive much deeper than a re rational diver) have specialized suits that provide both thermal and physical protection. They spend far more time underwater and expend a lot of energy so need more help staying warm than someone who dIves for only 45 minutes before climbing back aboard the dive boat. Their dive suits can include a helmet with a full face mask and communications gear.