What Happens if I Don't Use a Compressed Air Filter after My Compressor?

Problem: I bought an air compressor and an air dryer, but no filters. I should be fine without filters, right?

Solution: It is NEVER recommended to use an air compressor and/or dryer without using compressed air filters. Although the air dryer will help remove humidity from the compressed air, it will not aide in the removal of harmful contaminates, bacteria, dirt and other small particles. Pneumatech's variety of compressed air filters provide a solution for all types of contaminates and also give you the peace of mind knowing your compressed air is clean.

When compressed air comes into direct or indirect contact with your product, a much higher level of contaminant control is required. Particular attention needs to be given to contaminants that might appear during the compression and distribution of the air and there are different filters for each type of contaminate.

How do I know which filter(s) I need for my compressed air?

The application and use of your compressed air will decide which filters you need. If you are using compressed air in the manufacturing of electronics or creating of food or food packaging, you will want a higher quality of compressed air with as little contaminates as possible. If you are using compressed air to power pneumatic tools or fill tires, the compressed air can be slightly less "clean" and still get you the same end result. The different filter types are as follows:

  • P - Coalescing and particulate general purpose pre-filter
  • G - Coalescing filters for general purpose protection, removing solid particles and oil aerosol
  • C - High performance coalescing filters for general purpose protection removing solid particles and oil aerosol
  • S - Particulate filters for dust protection, removing solid particles
  • D - High performance particulate filters for dust protection, removing solid particles
  • V - Oil vapor and odor removal filter

Within the above categories, there are also different style filters for differnet applications:

Threaded filters are basic filters that are easy to maintain that have die case aluminum housings with special anodized treatment outside and inside to protect against corrosion. Pneumatech's line of threaded filters come in coalescing, particulate and adsorber options.

Flanged filters are higher grade filters that have a special coating insuring a housing lifetime of at least 20 years and also have higher performance. These filters also come in coalescing, particulate and adsorber options and have up to 10,594 nominal cfm flow.

Carbon filters are high-efficiency filters that are capable of removing hydrocarbons, odors and oil vapors from compressed air. When combined with Pneumatech oil coalescing filters, these filters can prodce Class 1 air according to ISO 8573-1:2010.

High pressure filters handle high PSI levels coming from the air compressor and are used in high pressure applications. These filters have the maximum contaminant removal using highly efficient glass fiber and fleece media. These filters allow low pressure losses, increased energy savings and lower operating costs.

So what happens if I don't use any of these filters?

All compressed air contains some level of both moisture and contaminates. By not using any filters, you are allowing the moisture and contaminates to reach anything downstream of your air compressor. This includes any machinery or equipment that is powered by your air compressor, anything you are cleaning by using the air from the compressor and/or any products that you are manufacturing or building. For example, if you are using compressed air in your brewery to power the actuators that bottle the beer, not only will the actuators become rusted over time due to the moisture in the compressed air, but your beer is also becoming contaminated with any particles, dust or bacteria that is in your compressed air stream. 

It is always recommended to have at least one filter in use for any packaging, manufacturing or any other heavy-duty compressed air use application. To browse Pneumatech's compressed air filters, click HERE.