WhisperSense® DC™ Fan, 50-80-110 CFM

This is the ULTIMATE in bathroom ventilation. This unit will turn itself on and off automatically based on motion and humidity levels.


WhisperSense® DC™ Precision Spot Ventilation fan with built-in Dual Sensor Technology (Motion & Moisture) for automatic moisture and odor control. Features Pick-A-Flow™ speed selector switch to select required airflow (50-80-110 CFM) and ECM Motor with SmartFlow® technology for optimum performance. Can be used to comply with the latest codes and standards.


  • Precision spot ventilation fans ideal for use in the bathroom, laundry room, mud room, basement or garage
  • Revolutionary ECM motor with SmartFlow™ technology for optimum CFM output
  • Pick-A-Flow Speed Selector (50-80-110 CFM) combined with SmartFlow™ Technology simplifies the selection process and ensures optimum performance to meet code and reduce callbacks
  • Dual Sensor Technology (Motion & Moisture) provides built-in redundancy for the ultimate in automatic moisture and odor control
  • Flex-Z Fast bracket provides flexible, fast & trouble-free installation, even from below the ceiling


Static Pressure in inches w.g.

  • 0.1|0.25|0.1|0.25|0.1|0.25

Air Volume (CFM)

  • 110|111|80|83|50|53

Noise (Sones)

  • <0.3|0.9|<0.3|0.6|<0.3|0.4

Power Consumption (Watts)

  • 10.6|16.4|5.9|10.8|4.0|7.2

Energy Efficiency (CFM/Watt)

  • 10.6|6.9|13.6|7.7|12.5|7.4

Speed (RPM) 1342 1480

  • 957|1239|821|1172|756|1093

Current (Amps)

  • 0.18|0.26|0.11|0.18|0.07|0.13

Power Rating (V/Hz)

  • 0.27

Motor Type (AC/DC)

  • DC

Duct Diameter

  • 4″ or 6″

Mounting Opening (in sq.)

  • 10-1/2″

Grille Size (in sq.)

  • 13″

Type of Motor Bearing

  • Ball

Thermal Fuse Protection

  • Yes