Air Box Jr. Intake (HEPA) Duct Air Filter

Eliminates 98% of all insects, molds, mildews, spores, pollen, dust, dander and other airborne particles down to 0.3 microns using the MERV 13 filter. Airflow up to Up to 400 cfm. Designed to push or pull air. Accepts standard 10 duct. Refill filters sold separately.