Which part of a pneumatic filter removes smaller dirt particles from the air?

• A. Cup seal
• B. Screen
• C. Core
• D. Element

Answer: (D)

In a pneumatic filter, the part that actually removes small dirt particles is the filtering media inside the housing. This element is a replaceable material with a fine pore structure designed to trap tiny particles as air flows through it, often arranged in a pleated form to provide a large filtration surface and high efficiency. The screen serves mainly as a protective mesh and to catch larger debris, but it isn’t responsible for removing the fine contaminants. The core acts as a support for the element, maintaining structure and airflow paths, while the cup seal simply prevents leaks around the housing. Therefore, the filtering element is the component that handles the removal of smaller dirt particles.