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2. 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.

3. 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 ...

4. Pneumatic tube - Wikipedia

   en.wikipedia.org/wiki/Pneumatic_tube

   Pneumatic tubes (or capsule pipelines, also known as pneumatic tube transport or PTT) are systems that propel cylindrical containers through networks of tubes by compressed air or by partial vacuum. They are used for transporting solid objects, as opposed to conventional pipelines which transport fluids.

5. Compressed-air car - Wikipedia

   en.wikipedia.org/wiki/Compressed-air_car

   Compressed air cars are emission free. They also do not require a connection to the electric grid. A wind turbine or other renewable energy source can directly drive an air compressor or hydraulic pump. Compressed air cars do not rely on petrol stations or an electric grid. While centralized infrastructure might not be needed, it is an option.

6. Startup is selling Australian air in a can--and people ... - AOL

   www.aol.com/news/2016-05-02-startup-is-selling...

   Green and Clean Air may sound to you like the name of an environmentalist group or a company with an initiative to create less pollution and waste. Startup is selling Australian air in a can--and ...

7. Self-contained breathing apparatus - Wikipedia

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

   An open-circuit SCBA does not recirculate air; it instead allows respired air to be exhausted outside. While 30 CFR 11 does not restrict the gas that can be used (although compressed air is usually chosen), use of compressed oxygen is not allowed due to the system's exposure to outside air. Duration is usually limited to 30-60 minutes.