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  2. Work in compressed air - Wikipedia

    en.wikipedia.org/wiki/Work_in_compressed_air

    Traditionally, compressed air work was limited to maximum ambient pressures of between 3 and 4 bars (3.0 and 3.9 atm), but experience with offshore saturation diving shows that higher pressures can be managed at acceptable risk using the techniques developed in that industry, including saturation exposures and the use of breathing gases other than air.

  3. Gas duster - Wikipedia

    en.wikipedia.org/wiki/Gas_duster

    A gas duster, also known as tinned wind, compressed air, or canned air, is a product used for cleaning or dusting electronic equipment and other sensitive devices that cannot be cleaned using water. This type of product is most often packaged as a can that, when a trigger is pressed, blasts a stream of compressed gas through a nozzle at the top.

  4. Wertheim–Meigs operation - Wikipedia

    en.wikipedia.org/wiki/Wertheim–Meigs_operation

    The first radical hysterectomy operation was described by John G. Clark, resident gynecologist under Howard Kelly at the Johns Hopkins Hospital in 1895. [2] [3] In 1898, Ernst Wertheim, a Viennese physician, developed the radical total hysterectomy with removal of the pelvic lymph nodes and the parametrium. In 1905, he reported the outcomes of ...

  5. Self-contained breathing apparatus - Wikipedia

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

    Z88.2 notes that these SCBAs normally use compressed air, but can also use cryogenic air or compressed oxygen. However, the standard warns that "the actual service time is usually less than the NIOSH rated service time". If compressed air is used, Z88.2 requires the use of "CGA G7.1–2011 Grade D breathing air". [14]

  6. Compressed air - Wikipedia

    en.wikipedia.org/wiki/Compressed_air

    Compressed air is an important medium for the transfer of energy in industrial processes and is used for power tools such as air hammers, drills, wrenches, and others, as well as to atomize paint, to operate air cylinders for automation, and can also be used to propel vehicles. Brakes applied by compressed air made large railway trains safer ...

  7. The best air purifiers of 2025 - AOL

    www.aol.com/lifestyle/best-air-purifiers...

    We put the best air purifiers from Lenovo, Honeywell, Winix, and more to the test to see which held up best (and actually purified the air for you). See what our product scientist has to say.

  8. Does vitamin C prevent a cold? Will having wet hair make you ...

    www.aol.com/lifestyle/does-vitamin-c-prevent...

    Myth #3: Vitamin C can prevent a cold Pharmacy and grocery store shelves are packed with vitamin C supplements that heavily imply or even clearly state that they’ll help prevent a cold. But the ...

  9. Pneumatic tool - Wikipedia

    en.wikipedia.org/wiki/Pneumatic_tool

    Pneumatic tools have many benefits which have contributed to their rise in popularity. The benefits of using compressed air to power tools are: Inexpensive; Safe to use; Easy to operate; Portable; Low theft rates; The primary disadvantage of pneumatic tools is the need for an air compressor, which can be expensive. Pneumatic tools also need to ...