How does compressed air work?

Air is the most common gas in our atmosphere and it makes up about 78% of Earth’s atmospheric pressure. Air is also a natural resource that we take for granted every day. With so many people living on this planet, there are bound to be some who don’t know what compressed air actually is or how it works. This blog post will explore the science behind compressed air and why you should care about having clean air around you!

It is made by compressing two gasses together at high speeds until they collide with each other and release their latent heat energy, which builds up pressure. They can also help clean up messes or identify electrical problems.

Air is a mixture of many different gases, the most abundant being nitrogen and oxygen. These two gases come from our water vapor in the air and other natural sources such as volcanoes or lightning strikes.

Compressed air isn’t just used for inflating tires on your car tire. It can also be used to create fog down on Broadway at night during theater performances that require it! The compressed gas acts much like steam does when you heat up food with boiling hot water. When heated, molecular motion speeds up which causes pressure in both cases; one creates fog while the other fills up your bike tire so it won’t go flat again any time soon!

Compressing the air makes the pressure increase, which you can feel when a bike pump is used to inflate your tire. When compressed air has no more space for molecular motion, it becomes extremely hot and dense- too much so that any further compression will cause the molecules of gases inside the container to collide with one another. This collision creates heat energy which then turns into kinetic energy as well as pressure on the gas particles within the container.

This process helps create things like fog in Broadway productions or fireworks! The entire point of compressing air is creating an effect by increasing density until there’s nowhere left for molecules to go without colliding together and releasing their latent heat energy and building up pressure.


Home Repair Tools

Air Compressor - Home Based

Whether you prefer to air-dry clothes, use a hair dryer or vacuum cleaner, compressed air is the key to making sure that these machines are properly functioning.

Electrical Tools

Food processing air compressor

In order to tackle basic electrical problem, make sure you have a supply of compressed air to remove dust and particles from the electrical outlet. Compressed Air is also used in many other industries, such as food processing, metalworking, woodworking and medical treatments. It’s not only good for powering machines- it can help clean up an entire mess!

Continuity Tester

Maintenance Engineer daily checks machinery in a production line.
Maintenance Engineer daily checks machinery in a production line.

A continuity tester will help you to identify any breaks in the wire that might not be visible to the naked eye. A continuity tester can help you find out when there’s a break in wiring or an issue with power source equipment respectively; while an Air Compressor pumps up car tires (among other things) using compressed air as well!


Man using an OHM meter to test voltage at the car.

For more serious electrical repairs, it’s worth investing in a Volt-Ohm Milliammeter (VOM). They’re great for measuring the different electrical currents and voltages, as well as testing whether there are any breaks or faults.


  2. Yu, Wan, et al. “Air Compressors for Fuel Cell Vehicles: An Systematic Review.” SAE International Journal of Alternative Powertrains, vol. 4, no. 1, 2015, pp. 115–122. JSTOR, Accessed 27 Apr. 2021.
  3. Wiartalla, A., et al. “Compressor Expander Units for Fuel Cell Systems.” SAE Transactions, vol. 109, 2000, pp. 484–488. JSTOR, Accessed 27 Apr. 2021.
  4. Optimal operation region of super-high-speed electrical air compressor in fuel cell system for working stability under multiple-time scale excitation

Leave a Comment