How should paper air filter cartridges be cleaned?

The correct method for cleaning paper air filter cartridges involves tapping them lightly on a hard surface. This technique helps dislodge dirt and debris that may have accumulated on the filter media while minimizing damage to the delicate paper structure.

Paper air filters are designed to trap particles and contaminants from the air, and while they need to be cleaned regularly to maintain engine performance, care must be taken to avoid compromising their integrity. Tapping allows the particles to fall away while preserving the filter material’s ability to function properly.

Other methods, such as vacuuming or using compressed air, can potentially cause damage to the filter. Vacuuming may create enough suction to tear the fibers, while compressed air can drive dirt deeper into the filter or rupture it. Washing with soap is typically not recommended as it can saturate the paper, leading to residual moisture that might damage the filter or hinder its effectiveness. Therefore, tapping lightly on a hard surface is the most effective and safe way to clean a paper air filter.