7 Best Humidity Sensing Bathroom Fans in 2021


A humidity sensing bathroom fan is an exhaust fan that automatically turns on when the bathroom’s moisture levels reach a certain level. It then turns off automatically when the humidity levels drop to a particular level. The functioning is similar to a thermostat, except that the humidity sensor fan works on relative humidity instead of temperature.

We have curated a list of the best humidity sensing bathroom fans effective in detecting and managing humidity levels.

Safety Precautions While Using Humidity Sensing Bathroom Fans

Below are some safety precautions to keep in mind while using bathroom exhaust fans with humidity sensors.

  • Adjust the fan blower based on the desired levels of humidity. Experiment with various humidity levels to know the right adjustments for your bathroom
  • Follow the installation instructions carefully to reduce any error
  • Clean and maintain the fan regularly for proper ventilation
  • Turn off the power while cleaning the unit
  • Do not install a humidity sensor bath fan in a thermally insulated ceiling

7 Best Humidity Sensing Bathroom Fans

1. Hauslane Humidity And Motion Sensor Electric Fan

Hauslane Humidity And Motion Sensor Electric Fan

The Hauslane built-in sensors will regulate the humidity levels in your bathroom. Its small electric fan provides powerful ventilation using suction and removes bad odors from rooms of a size up to 120sq. ft. It uses 1007 RPM fan speed and includes a double hanger bar for ideal positioning between ceiling joists.


  • Easy to install
  • Six-watt LED panel provides illumination
  • Backed with a limited two-year guarantee
  • Powerful airflow


  • Noise levels may be high

2. Delta BreezSignature VBF25AEH Exhaust Bath Fan

Delta BreezSignature VBF25AEH Exhaust Bath Fan

BreezSignature’s automatic humidity sensing bathroom fan features a virtually silent fan and sufficient humidity sensing ability. It has a LED indicator light that assures the fan is running. Engineered using DC brushless motor technology makes it a highly durable humidity extractor fan with the effective cost-saving operation.


  • Energy Star- qualified design
  • Includes a three-year warranty
  • Low noise levels of 2.0 sones
  • Consumes lesser energy
  • HVI-certified


  • Does not shut off

3. Panasonic FV-0511VQC1 WhisperSense DC Ventilation Fan

Panasonic FV-0511VQC1 WhisperSense DC Ventilation Fan

Designed to remove moisture and unhealthy air from your home, this WhisperSense exhaust fan comes with a humidity sensor. It features a four- or six-inch built-in duct adaptor that offers flexibility in the layout. The product includes Flex-Z fast brackets for quick and easy installation, and it provides quiet and powerful ventilation.


  • Removes contaminated air
  • Energy Star-certified
  • Allows selecting the airflow
  • Complies with the latest standards and codes


  • May not allow disabling motion sensor

4. Homeworks Worldwide Humidity Sensor Exhaust Ventilation

Homeworks Worldwide Humidity Sensor Exhaust Ventilation

The bathroom exhaust fan with a humidity sensor is effective in removing moisture and harsh odor from your bathroom. Designed to control humidity in bathrooms of area up to 80sq. ft, it also features a 15W LED that senses motion and automatically turns on and off.


  • Corrosion-resistant design
  • Easy to install
  • Includes a three-year warranty
  • Noiseless with LED touchpad for manual control


  • Sensors may not be effective

5. ESD Tech Bathroom Exhaust Fan

ESD Tech Bathroom Exhaust Fan

Featuring an extremely low noise level of 0.7 sones, this is one of the most powerful humidity sensing exhaust fans with a four-inch duct. It keeps your bathroom free from any build-up of mildew and bad odors. This is a wise choice for a bathroom of size up to 85sq. ft and includes four hanger bars for flexible installation.


  • HVI- and Title 24-certified
  • Includes a one-year warranty
  • Energy Star-listed
  • Convenient to install
  • Offers airflow of 90 CFM


  • LED light may not be of good quality

6. Hampton Bay Humidity Sensing Bath Fan

Hampton Bay Humidity Sensing Bath Fan

The Hampton humidity sensor fan is designed to ventilate bathrooms of size up to 80sq. ft. It can fit effectively in ceiling constructions, measuring 2x4in. Featuring white grilles, the humidity sensor fan is equipped with amber and blue LED indicators to control the speed and humidity modes.


  • HVI- and UL-certified
  • Automatic turn off function
  • Convenient to install
  • Noiseless design
  • Energy Star-certified


  • Humidity level switch may not work

7. Broan-NuToneRoomside Humidity Sensing Exhaust Fan

Broan-NuToneRoomside Humidity Sensing Exhaust Fan

Broan-NuTone offers a high-quality humidity-controlled exhaust fan effective for rooms of a size up to 105sq. ft. It helps remove moisture and reduce the risk of mildew or mold in bathrooms. This humidity sensing fan is integrated with a LED light that promises long-lasting illumination. It features a powerful motor engineered for uninterrupted operations.


  • Sturdy design
  • Made of galvanized stainless steel
  • Quick-to-remove moisture
  • Includes a three-year warranty
  • Energy Star-certified


  • May be noisy

Features To Consider While Buying A Humidity Sensing Bathroom Fan

Here are some factors to keep in mind to choose the best humidity sensing bathroom fan.

  1. Energy usage: Choose Energy Star-certified fans as they promise good efficiency and save your electricity bill.
  2. Noise levels: The noise levels are measured in sones. The lower the count of sones, the quieter the fan is. Look for bathroom fans with low values of sones to have low noise levels.
  3. Bathroom size: Keep in mind the bathroom’s size to buy a humidity sensing fan that offers good performance. Buying a small fan might not deliver the desired performance and buying a powerful fan will lead to energy wastage.
  4. Ease of installation: Look for exhaust fans that are convenient to install. Be aware of the complications of installing it in your bathroom before buying one.

Installing a humidity fan controller in your bathroom promises a fresh and odor-free space with controlled moisture levels. This post lists the best humidity sensing bathroom fans that control moisture and reduce the chances of mildew in your bathroom and toilet. We have also included important features to consider so that they can be of great help while buying.

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