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2. Full-face diving mask - Wikipedia

   en.wikipedia.org/wiki/Full-face_diving_mask

   A diver in a pool wearing an AGA full face mask A diver wearing an Ocean Reef full face mask Head protection helmet for use with Ocean Reef full face diving mask. A full-face diving mask is a type of diving mask that seals the whole of the diver's face from the water and contains a mouthpiece, demand valve or constant flow gas supply that provides the diver with breathing gas. [1]

3. Diving mask - Wikipedia

   en.wikipedia.org/wiki/Diving_mask

   A diving mask (also half mask, dive mask or scuba mask) is an item of diving equipment that allows underwater divers, including scuba divers, free-divers, and snorkelers, to see clearly underwater. [1] [2] Surface supplied divers usually use a full face mask or diving helmet, but in some systems the half mask may be used. [2]

4. Snorkel (swimming) - Wikipedia

   en.wikipedia.org/wiki/Snorkel_(swimming)

   A full-face snorkel mask may be considered as combining the technology of tube snorkels and gas masks, and to a considerably lesser extent, of full-face scuba masks, which combine the technology of gas masks and scuba regulators, but the snorkel mask does not contain a pressure reducing mechanism for breathing gas, and is not intended for use ...

5. Surface-supplied diving equipment - Wikipedia

   en.wikipedia.org/wiki/Surface-supplied_diving...

   A band mask is a heavy duty full-face mask with many of the characteristics of a lightweight demand helmet. In structure it is the front section of a lightweight helmet from above the faceplate to below the demand valve and exhaust ports, including the bailout block and communications connections on the sides.

6. Diving equipment - Wikipedia

   en.wikipedia.org/wiki/Diving_equipment

   They provide the same benefits as the full face mask but provide a very secure connection of the gas supply to the diver and additionally protect the head. Underwater writing slates and pencils are used to transport pre-dive plans underwater, to record facts while underwater and to aid communication with other divers.

7. Americans aged 30-40 are the ‘biggest losers’ in US society ...

   www.aol.com/finance/americans-aged-30-40-biggest...

   A quick Google search reveals that millennials are often characterized as entitled whiners who are quick to complain about their financial struggles — but it’s not a fair assessment.