ATMOX Exhaust Fan – 220 CFM – Internal Mount

Item:  01-370-051

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Crawl Space Exhaust Fan – 220 CFM – Internal Mount

The exhaust fans mount from the inside of the crawl space behind most standard vent openings. A benefit to internal mounting is allowing for unique or aesthetic vent covers to remain untouched. However, a grill can be provided to cover crawl space vent opening, if needed. The exhaust fans work well in spaces with internal walls or home additions because of the increased air flow and circulation in  areas that wouldn’t otherwise get ventilation. The exhaust fans are for use in vented or encapsulated crawl spaces.

The ATMOX system offers the best crawl space moisture control system through the use of smart ventilation and dehumidification. With the use of the ACE Controller, the exhaust fans will run only at optimal times.

The ATMOX controls use a low voltage 12V DC wire to power the fans. This means the setup of all components (not including a dehumidifier) will run from one electrical outlet. This allows for simple installation, and minimizes or eliminates the need for an electrician at the installation.

An AC Adapter powers these fans in a standard outlet, so in this setup the crawl space fans will run continuously.

Assembled in USA from domestic and foreign parts. Includes 3-year limited product warranty


  • Output: 220 CFM
  • Nominal: 1.1A at 12V DC
  • Usage: 15 Watts
  • Noise:  34dB
  • Power: 2.1mm Jack (Center Negative)
  • Mounting:  Plate mounts from inside crawl space

Spec Sheet – Exhaust Fan – 220 CFM – Internal Mount