When running a compressed air system, the use of clean, dry air is a non-negotiable requirement of nearly every project. Filtering your compressed air system is vital to protecting the expensive investment in pneumatic equipment. Dirty, moisture-filled compressed air will shorten equipment life and ruin that costly finish you just applied.
The air compressor takes the air we breathe and squeezes it under pressure. When that happens, it takes the two gases of oxygen and hydrogen, and creates H20 (water) and also creates heat. Any dust in the air that gets thru the filter is passed right along in the piping system.
Depending on your process it is important to remove moisture, oils, and even odor before it is used by the equipment.