Which component is responsible for removing contaminants from the air as it passes through the system?

Which component is responsible for removing contaminants from the air as it passes through the system?

• A. Inlet
• B. Duct
• C. Air Cleaner
• D. Fan

Answer: (C)

Removing contaminants from the air as it moves through the system happens through filtration inside the air cleaner. The air cleaner contains filter media that trap particles—dust, pollen, smoke, and other particulates—as air passes through. Some cleaners can also include media to adsorb gases or odors, but the essential function is capturing contaminants from the airstream. The inlet simply brings air in, the duct serves as the pathway, and the fan moves the air; by itself it doesn’t remove contaminants. So the component that actually cleans the air is the air cleaner.

Removing contaminants from the air as it moves through the system happens through filtration inside the air cleaner. The air cleaner contains filter media that trap particles—dust, pollen, smoke, and other particulates—as air passes through. Some cleaners can also include media to adsorb gases or odors, but the essential function is capturing contaminants from the airstream. The inlet simply brings air in, the duct serves as the pathway, and the fan moves the air; by itself it doesn’t remove contaminants. So the component that actually cleans the air is the air cleaner.