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2. High altitude breathing apparatus - Wikipedia

   en.wikipedia.org/wiki/High_altitude_breathing...

   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 ...

3. Oxygen tank - Wikipedia

   en.wikipedia.org/wiki/Oxygen_tank

   A small minority breathe trimix, heliox or other exotic gases. Some may carry pure oxygen for accelerated decompression or as supply gas to a rebreather. Some shallow divers, particularly naval combat divers, use oxygen rebreathers, and they use a small oxygen cylinder to provide the gas. [citation needed]

4. Portable oxygen concentrator - Wikipedia

   en.wikipedia.org/wiki/Portable_oxygen_concentrator

   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. It is similar to a home oxygen concentrator (OC), but is smaller in size and more mobile. They are small enough to carry and many are now FAA-approved for use on airplanes.

5. Self-contained breathing apparatus - Wikipedia

   en.wikipedia.org/wiki/Self-contained_breathing...

   Uses compressed oxygen. Uses an oxygen-generating solid. This involves a chemical reaction between potassium superoxide with exhaled water and carbon dioxide. A chlorate candle has to be struck to start the device. To reduce pressure buildup from use, a pressure-relief valve with saliva trap is included.

6. These 12 Filtered Water Bottles Are Perfect for Traveling or ...

   www.aol.com/lifestyle/12-filtered-water-bottles...

   These water bottles are great for travel, hiking, and everyday use. Skip to main content. 24/7 Help. For premium support please call: 800-290-4726 more ways to reach ...

7. Hiking equipment - Wikipedia

   en.wikipedia.org/wiki/Hiking_equipment

   Hiking equipment is the equipment taken on outdoor walking trips. The duration, distance, planned activities, and environment impacts equipment selection. For example, a short day hike across flat farmland versus trekking in the Himalayas would call for different types of equipment.