Bathroom Exhaust Fan with Humidity Sensor - 100 CFM - 1.4 Sones - 4 in. Duct

1 Review
Brand: Delta
Series/Collection: BreezGreenBuilder Series
Mfr Part Number: GBR100H

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The Delta BreezGreenBuilder GBR100H bathroom exhaust fan with humidity sensor features 100 CFM fan airflow and 1.4 sones for us in the bathrooms.This bathroom vent fan has 4 inch duct size and can be installed in the ceiling. The Delta bathroom fan is made of galvanized steel for the housing and the ABS material for the grille.

  • Energy star qualified
  • Perfectly quiet operation at less than 1.4 Sones
  • For humidity control mode, when humidity is above the user-adjustable set-point, fan runs at full speed (100 CFM). When humidity is below the set-point, the fan runs continuously at a pre-set lower level (0 or 60 CFM)
  • Adjustable humidity set points between ~50% to ~80% RH
  • Allows fan to operate in full speed mode or humidity control mode by manual switch
  • Blue and amber LED indicator lights to show humidity control and full speed modes
  • Annual energy cost for 24/7 full speed operation is approximately $13.15*
  • Hanger bars included
  • Detachable 4” diameter metal duct adapter
  • Housing is made of galvanized steel
  • HVI, UL and CUL certified and can be used to comply with ASHRAE 62.2, CA Title 24, and CALGreen requirements
  • Three year warranty

Brochures & Spec Sheets

Spec SheetDelta GBR100H SpecsDocumentationDelta GBR100H Installation


Housing MaterialSteel

Fan Features

Fan Airflow100 CFMFan Duct Size4 in.
Fan Sones1.4Maximum Room Size (sq. ft.)95
Recommended Room SizeMedium Rooms

Exit Lights Features

Panel TypeABS

Included Components

Fan Humidity Sensor Includedyes

Warranty & Certifications

CA ComplianceTitle 24CertificationsHVI
Energy Star CompliantyesProduct Warranty3 Years
UL Listedyes

Dimensions & Measurements

Product Length (in.)8Product Width (in.)8.75
Product Height (in.)5.75

Ratings & Reviews

1 review

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A good fan, but could be better

by -

Bottom line: the LED is too bright to leave the fan in auto mode all the time, the controller makes a quiet, but noticeable noise when powered up -- a note in the instructions tells you not to wire in line with a digital controller or this will occur. But my fan is not on the same series as a controller. I intended to wire the fan and leave it in standby all the time, but the status light is simply too bright to install in a connected master bath-- at night, light will enter the bedroom. The fan is quiet, but not quiet like a ceiling fan. It is much quieter than a traditional bathroom fan though. Be careful is installing in a wall, the transition from fan to ducting is close enough that you will need to modify your top plate or lower the fan to get a duct installed--less ideal for a bathroom fan that should be close to the ceiling to get the rising air. If the manufacturer made a 90 degree adapter, it would be perfect! Overall a good fan for the money. The automatic feature is nice.