What process do electronic air cleaners use to capture particles?

What process do electronic air cleaners use to capture particles?

• A. Electrostatic
• B. Mechanical filtration
• C. Ionization
• D. Ultraviolet

Answer: (A)

Electronic air cleaners capture particles through electrostatic forces. Air first passes through an ionization stage that charges the particles, and then the electric field pulls those charged particles onto oppositely charged collection surfaces. This attraction between charges is what removes the particles from the airstream, hence the term electrostatic. Mechanical filtration relies on a physical barrier to trap particles, ultraviolet uses light to inactivate organisms rather than capture, and ionization alone simply charges the particles without collecting them.

Electronic air cleaners capture particles through electrostatic forces. Air first passes through an ionization stage that charges the particles, and then the electric field pulls those charged particles onto oppositely charged collection surfaces. This attraction between charges is what removes the particles from the airstream, hence the term electrostatic. Mechanical filtration relies on a physical barrier to trap particles, ultraviolet uses light to inactivate organisms rather than capture, and ionization alone simply charges the particles without collecting them.