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2. Glossary of breathing apparatus terminology - Wikipedia

   en.wikipedia.org/wiki/Glossary_of_breathing...

   A gas extender is an apparatus for extending the endurance of a breathing gas supply, for example, by re-using some of the gas in a rebreather circuit.The term is relatively frequently applied to semi-closed rebreather systems, but is not used very often. [29] [30] [31] Compare with oxygen conserving device and demand pulse device

3. Breathing apparatus - Wikipedia

   en.wikipedia.org/wiki/Breathing_apparatus

   The exhaled gas from these devices is discharged to the environment, and the oxygen is lost, so they are less gas-efficient than closed circuit rebreathers, but do not have a carbon dioxide scrubber or counterlungs, which is a saving on weight and bulk, and make use of the oxygen available in the ambient air, so their efficiency is better at ...

4. Doctors Say This Is How You Can Loosen and Clear Mucus From ...

   www.aol.com/doctors-loosen-clear-mucus-chest...

   In adults and children age 2 and older, use it only on the neck and chest to ease coughing during a cold, per the Mayo Clinic. Vicks VapoRub is made of ingredients such as camphor, eucalyptus oil ...

5. Trimix (breathing gas) - Wikipedia

   en.wikipedia.org/wiki/Trimix_(breathing_gas)

   Trimix scuba cylinder label IMCA Trimix cylinder shoulder colour code alternative IMCA Trimix cylinder shoulder colour code. Trimix is a breathing gas consisting of oxygen, helium and nitrogen and is used in deep commercial diving, during the deep phase of dives carried out using technical diving techniques, [1] [2] and in advanced recreational diving.

6. Venturi mask - Wikipedia

   en.wikipedia.org/wiki/Venturi_mask

   The venturi mask, also known as an air-entrainment mask, is a medical device to deliver a known oxygen concentration to patients on controlled oxygen therapy. [ 1 ] [ 2 ] The mask was invented by Moran Campbell at McMaster University Medical School as a replacement for intermittent oxygen treatment.

7. I’ve accepted that early retirement isn’t in the cards for me ...

   www.aol.com/ve-accepted-early-retirement-isn...

   However, stocks tend to gain 111% during the bull market that follows, and they typically last for 2.6 years. If you just ignore the bears, the bulls will sustain you. If you just ignore the bears ...

8. Who is Kash Patel, Trump’s pick for FBI director? - AOL

   www.aol.com/kash-patel-trump-pick-fbi-113048960.html

   Kash Patel, Donald Trump’s pick to lead the FBI and an ardent supporter of the president-elect, has vowed to help dismantle the same organization he’s poised to lead.

9. Scientific instrument - Wikipedia

   en.wikipedia.org/wiki/Scientific_instrument

   Historically, the definition of a scientific instrument has varied, based on usage, laws, and historical time period. [1] [2] [3] Before the mid-nineteenth century such tools were referred to as "natural philosophical" or "philosophical" apparatus and instruments, and older tools from antiquity to the Middle Ages (such as the astrolabe and pendulum clock) defy a more modern definition of "a ...