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The interior of the Apollo PLSS Diagram of the A7L PLSS and OPS, with interfaces to the astronaut and the Lunar Module cabin. The portable life support system used in the Apollo lunar landing missions used lithium hydroxide to remove the carbon dioxide from the breathing air, and circulated water in an open loop through a liquid-cooled garment, expelling the water into space, where it turned ...
A lightweight portable oxygen concentrator: Inogen One G3 (2,2 kg) Sequal Equinox, transportable concentrator with a high oxygen flow rate A portable oxygen concentrator (POC) is a device used to provide oxygen therapy to people that require greater oxygen concentrations than the levels of ambient air.
Oxygen production cannot be shut off once a mask is pulled, and oxygen production typically lasts at least 15 minutes, sufficient for the plane to descend to a safe altitude for breathing without supplemental oxygen. [2] During the production of oxygen, the generator becomes extremely hot and a burning smell may be noted and cause alarm among ...
Bottled oxygen, more broadly known as high pressure compressed oxygen, medical oxygen, and aviator's oxygen, is oxygen in small, portable, high-pressure storage cylinders. For aviation, the weight of the cylinder is usually not critical, and the choice of material may be affected by economic considerations such as purchase price and useful ...
[21] [non-primary source needed] Other features may include Bluetooth connection to voice amplifiers or portable radios, digital heads-up displays, built-in infrared cameras, ePAR (electronic personal accountability report) system, point of view video recording, [22] and digital screens allowing the firefighter to more easily check their air ...
The bags along either side of the chest unit cool the air mixture before inhalation and is a surprisingly effective system, with the air being quite cool when entering the face mask. [clarification needed] There is a 60-minute timer at the top of the chest unit which, during the fighting of a casualty, [clarification needed] is set for only 45 ...
An oxygen analyser for breathing gas mixtures for diving. The type of oxygen sensor used in most underwater diving applications is the electro-galvanic oxygen sensor, a type of fuel cell, which is sometimes called an oxygen analyser or ppO 2 meter. They are used to measure the oxygen concentration of breathing gas mixes such as nitrox and ...
Ionisers tend to produce negative ions since these are supposed to have beneficial health effects. Even the best ionisers will also produce a small amount of ozone—triatomic oxygen, O 3 —which is unwanted. Ozone generators are optimised to attract an extra oxygen ion to an O 2 molecule, using either a corona discharge tube or UV light. [8]
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