The Humidity Sensing control turns on the fan when humidity is present and off when the room is dry, while the shield adds a subtle designer look to any room. High Airflow, Low Sound. 
 

• Mounts directly to sheetrock.
• One minute video, 30 minute install.
• Ceiling or wall mount.
• Ultra quiet operation.
• Low fan power usage.
• UL listed for use over bathtubs and showers when connected to a GFCI protected branch circuit.
• Fire rated.
• Type IC for use in direct contact with thermal insulation. Not to be installed in a ceiling thermally insulated to a value greater than R40.