1. Tap the flat faces to gently tap the ends of the filter to remove most of the heavy dry sand.
2. Dry air in a direction opposite to the suction air with dry air of less than 0.28 MPa. The nozzle is 25 mm less apart from the folded paper and blows up and down along its length.
3. If there is grease on the filter element, it should be washed in warm water with no foaming detergent. In this warm water, at least the filter element should be immersed for 15 minutes, and washed with clean water in the hose. Do not use heating method to accelerate it. Dry, one filter can be washed 5 times, then discarded and can not be reused.
4. Put a light in the filter to check. If it is found to be thin, the pinhole or damage should be discarded.
The above four points are the air compressor air filter treatment method.