An oxygen mask being essential for skydiving is a myth. Just don't bring one; it's a waste of money. jm143am says: For someone jumping at 14k feet or below - a mask isn't needed...anything over 14k feet the air is thinner and thus more difficult to breathe....most people won't jump their intro jumps from this height unless requested to do so...and they'll probably provide you with a mask...18k feet or something of that nature its a must to have one...don't want to be passing out after jumping out of a plane ;)
Yes, you would need to bring an oxygen mask to Venus. Venus has an extremely thick atmosphere consisting mainly of carbon dioxide, with very little oxygen. Without an oxygen mask, it would be impossible to breathe on Venus.
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Yes, you have to.
oxygen mask
His species needs very minimal oxygen and the mask rejects most of it to allow him to breathe easily.
To participate in oxygen therapy, you typically need a prescription from a healthcare provider, an oxygen delivery system (such as an oxygen tank or concentrator), nasal cannula or mask for oxygen delivery, and tubing to connect the delivery system to the cannula or mask. It's important to consult with a healthcare professional to determine the specific equipment needed for your oxygen therapy.
Most people bring oxygen tanks with them because of the high altitude and the thinness of the air (the oxygen at the top of Mount Everest is about 1/3 that it is at sea level). But a very few people have made it to the top without them.
If you are currently on oxygen therapy your physician may add it to your cpap machine via a shuttle/shunt that is connected to the tubing. Thus eliminating the need to wear the nasal canula and the mask together.
Why would you need to do that anyway? If you need the concentrated O2 that a mask provides, then a nasal cannula is not affective.
David Hempleman-Adams needed an oxygen mask to fly at high altitudes because the air is thinner at higher altitudes, which means there is less oxygen available for breathing. Flying at high altitudes without supplemental oxygen can result in hypoxia, which can impair cognitive and physical function. An oxygen mask helps to ensure that the pilot receives enough oxygen to maintain safe levels in the bloodstream.
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Some situations where a person would need an oxygen mask include during air travel at high altitudes, in emergency situations on airplanes that experience a loss of cabin pressure, or in medical emergencies where a person has difficulty breathing due to conditions like asthma, pneumonia, or a collapsed lung.