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Dryclean Pressure air, using clean, dry air, 30 psi or less, cleans much like pressure water. The elements that are dry and dusty only will clean up fairly well the first two or three times. Those with carbon or oily deposits are only partially cleaned, which results in short in-service periods. Dangers in using this method are: distributing dust to the inside of the filter and blowing dust into machinery and engines being serviced in shop or engines with open air intakes in the field. As with pressure water, the air should be angled along pleat lengths and not directed right at the filter material. Wash Washing elements with non-sudsing detergent is the best method available for the most effective and economical service life of an air cleaner. Fliter elements may be washed up to six times, depending on working conditions, providing the element is in good condition.
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