Which statement best describes the Dry Air Filter?

• A. Uses paper, cloth, or metal screen to trap dirt
• B. Is wet and oil-coated
• C. Uses a bath of oil to collect dirt
• D. Uses water as a cooling agent

Answer: (A)

Dry air filters work by passing intake air through a dry, porous filtration media such as paper, cloth, or a metal screen. These media trap dirt and dust as the air moves through, preventing particles from entering the engine. Because the filter is dry, it doesn’t rely on oil or water to capture contaminants. Wet oil-coated filters or oil-bath types use an oil layer to pick up debris, while water-based methods aren’t used for this filtration purpose. So, using paper, cloth, or a metal screen to trap dirt best describes how a Dry Air Filter functions.