Whether it is for new or used air compressors in Toronto, filters are an essential part of the entire compressed air system. Installing the right filter elements and maintaining them regularly will make sure that there is a consistent supply of clean air to your application. Otherwise, dirty air compressor filters will reduce the efficiency of the machine by allowing undesirable particles to get inside it, contaminating the processed air and causing damage to the internal working components.
Thus, it is important that you understand the filtration efficiency for compressed air and how it works. In general, there are two major elements of filter efficiency - particulate filtration efficiency determined in microns and oil carryover in PPM or parts per million.
Most dry air pollutants are measured in micron size as small as 0.001 mm which our naked eyes cannot see. Visible pollutants come in 50 to 60-micron size. Ultrafine particulates have 0.1-micron size while fine particles have 2.5-micron size. Conversely, oil removal capacity of a certain filter is measured in PPM. It is often applied in rating in removing oil that goes downstream in the compressed air system.
Now, the biggest question would be how clean does compressed air need to be, especially if you are looking for used air compressors in Toronto? It actually depends on the specific application you have for the compressed air. For example, compressed air required for medical purposes must be really clean compared to that of the air needed for inflating tires.
For the former application, a filter with 0.01-micron size is required while 0.3 to 1-micron size would be enough for the latter. Thus, it all boils down to the fact that the cleaner air is needed, the smaller or finer the filter element should be to catch minute pollutants.
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