When you choose a filter for compressed air, think about these things:


What is the size of particles that need to be taken out by the filter?

Filters can clean things that are between 5 and 40 microns.

Special types of filters are available for use in the food and pharmaceutical industries. These filters can remove very tiny particles that are smaller than 1 micron.

Flow and pressure decrease.

The filter's size changes based on how quickly the gas needs to be cleaned. These things can move gas at a speed of up to 1,700 cubic meters per hour.

To pick the right size, you need to find out how much pressure the filter can lose.


Look at the graph from the maker that shows how much liquid is flowing and the change in pressure.

To make sure things work well, it's best to not let the pressure drop too much - should be less than 5 pounds-per-square-inch.


Temperature means how hot or cold something is. It is measured using a thermometer and is usually written in degrees Celsius (°C) or Fahrenheit (°F). High temperature means something is hot, while low temperature means it is cold.

What is the temperature that the filter for the compressed air works at?

Filters that work really well can be bought for very hot temperatures (higher than 450°C).


Environmental standards are rules that aim to protect the environment from harm caused by human activities. They set out limits on the amount of pollution that can be released into the air, water or soil, as well as guidelines on the proper disposal of waste and the protection of natural habitats. Companies and governments must comply with these standards to ensure that the environment is protected for future generations.

Air filters are made to follow the rules of ISO 8573. This tells how clean compressed air should be, even if there are particles, water, or oil in the air system.

The rules say stuff about bad things in air machines. They also talk about other parts of the rule book for testing and making sure the air is good.


The ISO 8573-1:2010 rule tells about things that can contaminate air, such as germs and gases.

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