A dehumidifier air filter system has: a dehumidifier module; a scrubber module; a dehumidifier adapter connected to the dehumidifier module; an air duct connecting the dehumidifier module to the scrubber module, and an air control window formed on the dehumidifier adapter. The air duct connects to the dehumidifier module at the dehumidifier adapter. The dehumidifier air filter system may be constructed with a front shell forming a housing for the dehumidifier apparatus within the dehumidifier module. The front shell has a front shell aperture. The front shell aperture receives the dehumidifier adapter, and the dehumidifier adapter is formed as a plate having at least two openings including: an air control window opening, and a ducting hose connector opening.