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What is the function of an air filter?

1 Answers

JaxsonAnn

07/29/25 4:23pm

The function of an air filter includes the following 3 points: 1. Interception: Dust entering the filter medium will repeatedly impact the medium, sticking upon contact. Airborne dust particles move with the airflow through inertial motion, random motion, or under the influence of certain field forces. When these particles collide with other objects, they adhere to the fiber surface; 2. Electrostatic effect: Static electricity alters the trajectory of dust particles, causing them to collide with obstacles. It also enhances the adhesion of dust to the medium. Both fibers and particles may carry charges, generating an electrostatic effect. Electrostatically charged filter materials can significantly improve filtration efficiency; 3. Filtration of substances: An air filter removes solid particles from the air, such as iron filings or sand grains. Its role is to separate liquid water and oil droplets from compressed air and filter out dust and solid impurities, though it cannot remove gaseous water and oil.

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