Air Compressor Filter

The [easyazon_link cloaking=”default” keywords=”Air Compressor Filter” localization=”default” locale=”US” nofollow=”default” new_window=”default” tag=”airtoolguy0a-20″]Air Compressor Filter[/easyazon_link] is very important to your air compressor. Thus, you should spend time to make sure that the air compressor oil filter is properly placed and installed, so that your machine will work as normal. A correct understanding and maintenance of air compressor oil filter would help save a lot of money on expensive repairs in the future.

Usually, oil filters are installed on big compressors. Its function is to prevent dirt, rust and sands to enter your compressor, by filtering the oil (as its name suggests). These dusty particls, over time, will do damage to the filter, and also blocks the oil separator. Usually, the filter has the shape of an open-side can, with a folded paper filter to allow as much oil as possible to flow through and absorb the dirts. Not every air filters has that exact some shape though, with some variations.

Air Compressor Filter
Various range of Air Compressor Filters

How the Air Compressor Filter functions?

The oil filters does its job with the help of the bypass valve. With this valve detects the temperature gaps grows wide, it will open and let the oil flow onto air compressor, completely bypassing the oil filters. Why does it let dirty oil to go through, you may ask? For compressor, oil is so essential that dirty oil is still acceptable, rather than having no oil at all. So when the oil filter clogs, the bypass valve will works its charm. A few low-quality and low-price air compressors do not have the bypass valve at all, so before buying, check with the seller about this piece of air compressor accessories.

Besides heavy compressors, small-scale & oil-less compressors may also contains the oil filter. This filter is used not to help the air compressor works, but for the gearbox on top of the machine.


Air Compressor Filter is an important piece of Accessories that you need to pay particular attention to. Drain the oil often, and do not let the filter clogs with dust and dirty particles. A good maintenance and keep up will help a lot with the performance of your machine.

For more other important Air Compressor Accessories that you should have for your air compressors.

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