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purchase air compressor air filter for all models.

Air filters are essential to help protect compressors from airborne contaminants. Without a true filter in place, dust can build up on the air side, reducing machine performance and increasing maintenance costs.

BISON intake filter helps promote smoother airflow and greatly reduces pollution.

  • 99.9% efficiency, CE, AS, CRN, ASME certified and manufactured to ISO quality standards.
  • Captures particles 5x smaller than alternatives
  • Smoother, cleaner airflow helps reduce energy costs, conserve fluid and extend air end life.

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air compressor air filter manufacturer & supplier

There are many different types of air compressor filters. So you need a compressed air filter but are overwhelmed by various types, sizes and specifications.

Don’t worry! Let us help you.

air compressor air filters

Particulate filters

Particulate compressed air filters remove dust and particles from the air.

They use different methods to do this, but the main one is that the dust particles get trapped in the filter material and stay there.

Dust is “stored” inside the filter material. But it’s designed for that, so it has a great dust-holding capacity.

However, as the filter becomes “full,” the pressure drop increases, and so does the number of dust particles passing through the filter.

So every few months, the filter element needs to be replaced.

Coalescing filter

Coalescing filters are primarily used to capture oil and/or moisture in tiny droplets suspended in compressed air.

Unlike particulate filters, they do not trap contaminants in the filter material.

The filter material causes small water and oil droplets to stick together with the fog droplets to form larger water droplets. The droplets then fall to the bottom of the filter. Fitted with a drain to drain liquid from the filter housing.

Coalescing filters can theoretically work “forever” if there are no solid particles in the air. However, solid particles are always present in compressed air. Coalescing filters also need to be replaced every few months.

Activated carbon filters

Activated carbon filter removes (oil) odors and vapors.

For that matter, they are not very common in “shop air” installations or industrial installations. They are mainly used in plants or breathing air applications where food or pharmaceuticals are produced.

Unlike other filters, these activated carbon filters do not filter out solid or liquid contaminants. The air should be completely free of all solid and liquid contaminants before it passes through the activated carbon filter!

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If you have any enquiries about the BISON air compressor air filters, we would love to hear from you.

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air compressor air filter

There is no better filter than BISON air compressor filters. We have assembled a dedicated team of experts to develop cutting-edge filtration solutions. Over the years, they have innovated in filter types and designs, processes and filter media to provide you with best-in-class accuracy, reliability and service life.

A detailed guide for beginners to advanced customers

Compressed air filtration plays a very important role in any compressor installation. A high-quality air compressor filter protects your system from particulates, dirt, dust, solid particles, and oil. These harmful contaminants can damage your equipment and downstream machinery, wear parts and cause blockages.

Without filters, contamination can even affect the products you manufacture, leading to lost production and inevitably costing you dearly. Therefore, high-performance filters must be used. Poor quality filters can reduce performance, cause significant pressure drops and increase energy bills.

To protect your investment, your end product and keep your compressed air clean and free from contamination, we recommend BISON’s air compressor air filter range.

How do air compressor air filters work?

By trapping solid particles and separating liquids from compressed air, air filters filter the air. To clarify the process, it helps to identify the significant components in an air compressor filter:

Air inlet

The air compressor air inlet is where the air enters the filter. An internal cap pushes air into the helix from above. It is essential to get the right size inlet and not use a filter that is smaller than the line.

Filter cap

Through the filter, airflow is guided by this component. The arrow on the filter’s outside indicates the airflow direction and serves as a safeguard against placing the filter the wrong way.

Air path

This is the real path that air takes as it travels through the air filter while it spins like a cyclone.

Filter drain

This orifice allows air to exit the filter and should match the inlet size. If the filter discharge is too small, airflow will be restricted.

Filter element

The filter itself removes pollutants from the air, trapping particles over time. Eventually, the filter becomes clogged and must be cleaned or replaced.

Filter Bowl

The filter bowl is the largest part of the filter you can see. It attaches to the lid and either threads or twists and locks into place.

Filter quiet zone

Pollutants, water and oil collected by the filter all end up in the quiet zone at the bottom of the filter. You’ll usually find a barrier hanging from the bottom of the filter to keep debris from re-entering the air.


Collected contaminants and debris must be drained. Many filters must be manually drained, but others have float-operated or electric auto-drains.

Why do I need to replace the air filter?

During operation, compressed air filters perform under extremely harsh conditions:

  • pressure change
  • Pulse air demand
  • Temperature change – day/night and summer/winter
  • High/Low Humidity – from 100% saturated air to very low dew points
  • Chemical attack – from oily acid condensate and lube oil additives

Over time, these extreme and changing conditions can lead to loss of efficiency and operational performance and even product deterioration. To continue to perform under the most challenging conditions, reliable and durable filters are essential.

One of the main reasons customers choose not to replace their filter elements is the cost of replacement parts and maintenance. However, the cost of inadequate filtration is often several times the cost of a filter element!

Failure to replace the filter element will result in the following:

  • Equipment corrosion
  • Reduced performance
  • Reduced availability/damage of production machinery leading to downtime
  • Long-term cost increase
  • Increased risk of failure

For optimum performance, cost-effectiveness, and energy efficiency, the air compressor air filter must be replaced according to the manufacturer’s instructions. Used correctly, it can save business owners a lot of energy.

With use, more and more particles are attached to the filter media, reducing airflow across the filter surface. Increased pressure drop means higher operating costs for the overall system. To optimize energy savings and increase efficiency, replacing the filter after the recommended time period is essential.

frequently asked questions about air compressor air filter

By removing contaminants from the airstream, the right filter can significantly reduce operating costs, ensure the strictest air purity standards are met, and extend the life of your air system and pneumatic equipment.

To ensure a constant supply of high-quality compressed air at all times, air filters must be replaced regularly.

Air filters should be replaced at least every 12 months. Applications with longer annual run times or very high purification requirements require shorter replacement intervals.

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