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Tapping
The tapping method is used when the dirt is chiefly dust and not heavily
contaminated. Tap gently on flat surface; contaminated side down. DO NOT
tap in a manner that may dent or rupture the filter elements.
Compressed Air
The air method is used if the dirt is chiefly dust. Direct compressed air up
and down the pleats opposite to the air flow arrows shown on element. (Blow
air against the clean side of the filter element).
IMPORTANT: The maximum air pressure at nozzle must not exceed 30
psi (207 kPa). Excessive air pressure will rupture the filter elements.
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