While a manual one will get the job done. You need to guestimate when it is too humid that you need to switch it on and when the humidity has lowered so that you can switch it off. this can be tiring. Granted you can install a hygrometer to assist with humidity measurement. But you would be better off with a humidity sensing fan. But for it to be efficient, it has to be the best humidity sensing bathroom fan.
Top 5 Humidity Sensing Bathroom Fans
Delta Breez GBR80H GreenBuilder
This exhaust fans for bathrooms has a quiet operation at 0.8 sones. It has an indicator light underneath the grille that lets you know the fan is running. It also has a humidity adjuster for humidity ranging from ~50% to ~80% RH. It also has different fan speed settings that are customizable according to your settings with regards to the acceptable levels of humidity. The fan is Energy Star and HVI certified. It also features a DC brushless fan motor for superior reliability, efficiency, and extremely low power consumption. The fan operates using 4.0 Watts with an efficiency rating of 12.5 CFM per Watt. It is easy to install and its size makes it a great fit for most bathrooms as it is smaller than most bathroom fans in the market. Features
Indicator lightAdjustable humidityDC brushless fan motor
Pros
Quiet operationEasy to useAdjustable humidity
Cons
Takes a while to start up
Delta BreezeSignature VFB25ACH Breez
The Delta fan is a virtually silent top rated bathroom vent fan that is equipped with a precision-engineered with DC brushless motor for extended reliability. It has an easy switch in and out of humidity sensing mode using a toggling wall switch. The fan is Energy Star qualified for its efficient cost-saving operation. Its energy savings can go up to 74% compared to other brands. When the fan is in humidity-sensor mode, it automatically switches on when humidity is above 60 percent. It has an LED indicator to let you know when it is in operation. To guarantee its quality the fan has a 3-year warranty. Features
Humidity sensing modeEnergy star qualifiedDC brushless motor technologyCeiling-mount design
Pros
Easy to installQuite operationEnergy efficient
Cons
Sensor does not work properly
Panasonic FV-0511VQC1 WhisperSense
Panasonic has outdone itself by manufacturing a WhisperSense fan that actually whispers. This fan is equipped with a humidity sensing switch that regulates the humidity in your bathroom to eliminate humidity, mold, mildew, and other air pollutants. Check this too: Best waxless toilet seal The fan consumes a minimal amount of electricity while doing an excellent job. It has a 6-year motor warranty and a 3-year parts warranty. It is easy to install and It works with both 4″ and 6″ ducts and it comes with a Flex-Z Fast installation bracket that is ideal for positioning the fan exactly where you want it. It also has an auto-shutoff function for increased energy efficiency. Features
3-year warrantyFlex-Z Fast installation bracketBuilt-in motion sensorHumidity sensorsAuto shutoffECM-motor
Pros
Energy efficientEasy to installAutomatically shuts off
Cons
The fan never shuts off
Panasonic FV-05-11VKS2 WhisperGreen
Get to improve your air quality by eliminating humidity, mold, mildew, and other air pollutants from any room. While using a pretty noiseless fan. The fan uses less energy to move larger volumes of air than other brands. This intron leads to less overheating and motor failure, saving you money in the long run. The fan comes with a 6-year motor warranty and a 3-year parts warranty. Check this too: Best waterproof smart TV for the bathroom The fan is compatible with 4″ and 6″ ducts the installation kit includes a Flex-Z Fast installation bracket for convenient positioning. You can also customize your fan with up to three extra accessories such as the Multi-Speed module, SmartAction Motion Sensor, Condensation Sensor, or NiteGlo LED night light. That you simply need to plug and play. Features
Pick-A-Flow Airflow SelectorSmartFlow technologyMulti-Speed Plug ’N Play moduleImproved Flex-Z FastSingle-hinge bracket
Pros
Energy efficientEasy to installDoes not need any manual control
Cons
Suction power is weak
Broan-Nutone QTXE110S
This fan can be used to eliminate humidity, tobacco smoke, and cooking odors in rooms up to 105 sq. ft while not producing a squeak. It cleans 110 cubic feet of air per minute. The fan comes with 6″ ducting for easy installation and hanger bars. It has a humidity sensor that automatically switches on when it detects high humidity levels. The fan is programmable from 5-60 minutes and it uses advanced Sensaire technology to humidity levels. It has a plug-in blower and a permanently lubricated motor that does not require regular maintenance. Features
Sensaire technologyAuto shut-off timeHanger bars
Pros
Easy to installEnergy efficientMade from durable materials
Cons
The sensor comes on during winter for no particular reason
Conclusion
The best humidity sensing bathroom fan should have a humidity sensor, an auto shut of function, be energy efficient, be able to service a spacious bathroom and be easy to install. Also, make sure that it comes with a motor and parts warranty. Do not be afraid to ask for more information regarding the fan you opt to buy at your local store and whatever you do not make a compromise for what is readily available. Unless it meets all the standards mentioned above.
