page_title: Freediving
section_title: 1) Mask
hierarchical_section_title: Freediving / Free-diving Tools / 1) Mask
caption_attribution_description: English: A twin-lens, low-volume diving mask, Aqua Lung (Technisub) Sphera, of the type favoured by many Underwater Hockey players.
context_page_description: Freediving is diving underwater without using a breathing apparatus. Free divers practice holding their breath for long periods of time so that they can stay underwater longer.
  Usually free divers stay underwater for about 45 seconds. That allows them to explore about 30 feet underwater. Some freedivers can dive to over 100 metres, and hold their breath for four minutes or longer.
  In Greek, “Apnea” means “Without air” and free-diving is called “Apnea”. Free-diving is similar to snorkeling, but divers need to hold their breath if they go in deep water. Free-diving doesn't need tools for breathing. Free-divers hold their breath until going up to the surface of the sea instead of using an air tank. Therefore, the most important part of free-diving is learning to breathe well. Most people can free-dive since it doesn’t need a snorkel or scuba tank. However, free-divers condition their mind and body before going free-diving.
context_section_description: Free-divers choose a lightweight mask to fit their faces to swim comfortably in the water.
caption: Underwater Mask
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