Air King’s ENERGY STAR® certified D4H series humidity sensing exhaust fans provide efficient and effective ventilation at barely audible sound levels for bathrooms needing automated humidity control. The integrated humidistat senses the humidity level of the room and turns the fan to high speed until the humidity level is below the preset percentage. Humidity level can be set up to 80% relative humidity. The energy efficient DC motor maintains CFM ratings across multiple static pressures and is suitable for continuous operation. The unit easily installs using the included adjustable hanging brackets and the 6 inch round metal duct connector with gasketed damper protects against backdrafts and seals the duct better than any other damper on the market today. The white, low profile plastic grill is unobtrusive and complements almost all decors. A side access panel allows you to wire the fan from inside or outside the housing. The D4H series is UL listed for installation over a tub or shower on a GFCI circuit, is HVI Certified, and can be used to comply with CALGreen. Perfect for use in mid size to larger bathrooms.
Excellent ASHRAE 62.2 solution (learn more)
ENERGY STAR® certified (learn more)
Can be used to comply with California Title 24 requirements as well as CALGreen (learn more)
Can be used to comply with the ventilation standards required by LEED for Homes (learn more)
Energy efficient DC motor maintains CFM ratings across multiple static pressures and is suitable for continuous operation.
Integrated humidistat senses the humidity level of the room and turns the fan on until the humidity level is below the preset percentage. Humidity level can be set up to 80% relative humidity.
D4H series humidity sensing exhaust fans easily install using the included adjustable hanging brackets.
UL listed for installation over a tub or shower on a GFCI circuit.
6 inch round duct connector with gasketed damper protects against backdrafts and seals the duct better than any other damper on the market today.
Side access panel allows you to wire the fan from inside or outside the housing.
HVI Certified performance.
This product meets the Made in America requirements of the American Recovery and Reinvestment Act as a manufactured Good. To download the Guidance PDF
| Models | D4SH | D4DH |
|---|---|---|
| Specification Sheet Download | D4SH | D4DH |
| Number of Speeds | 1 | 2 |
| Highest Available Speed @ 0.1 SP | 120 | 120 |
| Lowest Available Speed @ 0.1 SP | 40 | 40 |
| Sones @ .1 SP | <0.3 – 0.3 | <0.3 – 0.3 |
| Achievable CFM at other SP levels | See Specification Sheet | See Specification Sheet |
| Sound Level | Very Quiet | Very Quiet |
| Maximum Fan Watts | 7.3 | 7.3 |
| ASHRAE 62.2 Ventilation | Whole House/ Local | Whole House/ Local |
| ENERGY STAR® certified | YES | YES |
| Can be used to comply with California Title 24 requirements | YES | YES |
| CALGreen | Compliant for use in bathrooms or whole building ventilation | Compliant for use in bathrooms or whole building ventilation |
| Duct Size | 6″ round | 6″ round |
| Collar / Damper | Metal | Metal |
| Mounting | Hanger Bars | Hanger Bars |
| Housing | Metal | Metal |
| Dimensions |  |
|
Download Specification Sheet:
D4SH | D4DH
Download Instruction Sheet:
Single Speed Models | Dual Speed Models
Exhaust Fan Housing with Integrated Humidity Sensor
Blower (motor)
Hanger Bars for Mounting
Damper and Duct Collar
Grill
User Manual
