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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]
Another peoples to take advantage of the cleansing properties of alcohol were the Greeks. They used wine along with boiled water and vinegar to cleanse wounds. The Greeks, specifically Hippocrates (430–377 BC), were also the first to establish the four cardinal signs of inflammation: redness, swelling, heat and pain. [16]