Which type of filters are designed to absorb VOCs and remove the largest particles?

• A. HEPA filter
• B. Fiberglass filters
• C. Carbon filters
• D. Media filter

Answer: (C)

Activated carbon filters are designed to adsorb VOCs and odors because the activated carbon provides a very high surface area that traps gas molecules. They target gaseous contaminants rather than large solid particles, which are usually captured by a mechanical prefilter or a higher‑efficiency particulate filter. In practice, a system often uses a prefilter to remove the largest particles before the air reaches the carbon stage, allowing VOCs to be adsorbed more effectively. Among the options, activated carbon is the filter type specifically intended for VOC adsorption, which is why it’s the best answer in this context.