Trimix Gas Analyser Showing Calibration Options IMG 20210304 173527
Trimix may refer to: * Trimix (breathing gas), a gas mixture used in deep-sea diving * Trimix (drug) Trimix is a prescription combination drug containing alprostadil, papaverine, and phentolamine. It is used to treat erectile dysfunction. Medical use Available forms Trimix is available in several different formulations, including a gel that c ...

Trimix (breathing Gas)
Trimix is a breathing gas consisting of oxygen, helium, and nitrogen. It is used in deep commercial diving, during the deep phase of dives carried out using technical diving techniques, and in advanced recreational diving. The helium is included as a substitute for some of the nitrogen, to reduce the narcotic effect of the breathing gas at depth and to reduce the work of breathing. With a mixture of three gases it is possible to create mixes suitable for different depths or purposes by adjusting the proportions of each gas. Oxygen content can be optimised for the depth to limit the risk of toxicity, and the inert component balanced between nitrogen (which is cheap but narcotic) and helium (which is not narcotic and reduces work of breathing, but is more expensive and can increase heat loss). The mixture of helium and oxygen with a 0% nitrogen content is generally known as heliox. This is frequently used as a breathing gas in deep commercial diving operations, where it is ...
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