What is a recommended method for cleaning the air filter?

• A. Shock filter by striking it on a table and use a card to vibrate dirt out
• B. Use a powerful vacuum to suck dirt out
• C. Rinse with hot water and soap
• D. Blow compressed air directly from the outside in

Answer: (A)

The key idea is to remove loose dirt without soaking or forcing debris into the engine or damaging the filter media. The recommended method is to gently shake or tap the filter on a hard surface to dislodge dirt, then use a thin card or similar tool to lift dirt out from between the pleats. This keeps the filter dry and preserves its structure while effectively removing loose particles.

Other approaches don’t fit because a powerful vacuum can pull dirt deeper into the system or clog the intake, rinsing with hot water and soap can saturate and warp the filter (especially if it’s not a foam type designed for washing), and blowing compressed air from the outside in can push dirt further into the engine and may damage the filter.