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12 Best Bathroom Exhaust Fan With Humidity Sensor In 2024

Sonya Harris
  Feb 26, 2024 4:21 AM

We independently study, test, and review 12 Best Bathroom Exhaust Fan With Humidity Sensor products before making recommendations. We’re testing the Panasonic, Broan-NuTone, DELTA ELECTRONICS (AMERICAS) LTD., Homewerks, KAZE APPLIANCE, Hauslane  for a for a future update to this guide.


Due to their hands-free technique of sensing more the appropriate moisture levels in the bathroom, Bathroom Exhaust Fans with Humidity Sensors are highly recommended as the exhaust fans of choice for bathrooms.

Because everyone in the house uses this room for bathing or showering, the humidity in this area will always be higher than normal.

These levels can become troublesome if they aren't addressed, which can happen in one of two ways.

In the first place, mold and mildew thrive in high humidity, and many kinds of germs can be found lurking in the resulting environment.

Thus, everyone who spends any time in this area will wind up inhaling contaminants, which dramatically reduces the quality of air in the room.

A restroom with low air quality is also aesthetically unappealing. Unless a remedy is found, mold and mildew will begin to grow in wet areas, leaving spots and marks on the walls and ceilings that are dark in color.

To get rid of this look completely necessitates a great deal of time and effort. As long as the problem persists, it will continue to damage the wall until it eventually reaches the underlying structure, which will only happen after too lengthy a period of time.

An exhaust fan equipped with a humidity sensor can easily combat all of this. To avoid hazardous fungi, such as mildew and mold, from taking hold in your bathroom, these models are vital for identifying the first signs of excess humidity and then activating immediately to prevent the extra moisture from lingering or building up.

Here are some of the best humidity-sensing bathroom exhaust fans. These are the models that we believe will provide you great outcomes at a fair price.

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Last update on 2024-02-26 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Product Advertising API

Buying Guide

Certain considerations are critical while shopping for the best humidity-sensing bathroom fan. You may obtain a general notion of what to look for by going over the following factors.


Determine your budget before you begin your search for a new one.

To choose the best bath vent fan with a humidity sensor in your budget range, you need to determine how much you are willing to spend.

Noise level

The level of noise produced by a bathroom fan varies widely. However, some people's voices are more audible than others. Check the noise levels before purchasing a humidity-sensing bathroom fan.

When it comes to showering, you should opt for a quieter model that won't bother you. Modern bath fans are designed to be completely silent when in use.

They are so inconspicuous that you won't even notice they're running.

Energy use

The amount of energy a bathroom exhaust fan uses is referred to as "energy utilization." Choose an Energy Star-certified model if you don't want to see your monthly energy costs soar.

In this way, it can be concluded that the fan is both energy-efficient and strong at the same time. It is possible to save a lot of money on your utility bills by installing an energy-efficient humidity sensor bathroom fan. They use extremely little electricity, making them ideal for bathrooms.

Humidity Sensor Adjustability

When shopping for a humidity-sensing bathroom fan, buyers should focus their attention on the device's most critical component: the humidity sensor. The humidity setting of a bathroom fan is usually shown in the form of a dial or knob. It requires a flathead screwdriver to adjust.

The sensor's default value for humidity can be too low on occasion. If you reside in a particularly humid area, this can be a real problem because it causes the bathroom fan to run constantly. When the humidity sensor is set too high, it won't turn on at all when you need it most.

There's no need to go with a bathroom fan that doesn't allow you to alter the airflow based on humidity, but it's a good idea in general. Not to mention, fans with humidity sensors that can be adjusted cost more than non-adjustable fans nearly universally.

Fan Speed or CFM

You don't want to end up with an exhaust fan that is either too powerful or too weak for your bathroom if you don't get the sizing right. You can tell how much air a fan can move in a minute by looking at its CFM rating, which measures how many cubic feet of air it moves each minute. The size of the bathroom has a significant impact on the wattage of the exhaust fan you'll need.

But in most circumstances, the process of sizing a humidity sensor-equipped bathroom fan is straightforward. The "1 square foot = 1 CFM formula" is all you need to remember. You'll need an exhaust fan with a CFM rating of at least 90 if your bathroom's floor is 90 square feet. Check out our bathroom exhaust fan sizing chart if you have a large bathroom and need a fan that's big enough.


How do humidity sensing bathroom fans work?

Using bathroom exhaust fans with humidity sensors might help to keep the walls and ceilings of the bathroom dry.

Mold and mildew won't be able to flourish in your bathroom, either. Fans with humidity sensors switch on when the humidity rises and shut off after a predetermined amount of time.

Is it bad to oversize a bathroom exhaust fan?

CFM (cubic feet per minute) is the unit of measurement for bathroom exhaust fans. Fan performance is measured in cubic feet per minute (CFM).

It's generally a good idea to slightly oversize the fan. If your bathroom is 54 square feet, you might as well have a 60 CFM fan.

Which is the most quiet bathroom fan?

The quietest bathroom fan on the market is Broan's QTX, with a noise level of 0.3 sones.

What is the right CFM for a 12×12 bathroom?

You should multiply 10 tons by 400/ton to achieve the actual system airflow demand of 4,000 CFM under normal operating conditions. Each square foot of area requires one CFM.

Which brand of bathroom exhaust fan has the most traction?

The market for bathroom exhaust fans is flooded with reputable manufacturers. Delta and Panasonic are two of the most reputable names in the industry.


The exhaust fan with a humidity sensor is a necessary if you want to keep the humidity level in your bathroom under control. If you don't have time to manually remove the excess humidity from your bathroom, then this type of device is the best option for you.

Each of the bathroom fans I've discussed is exceptional in its own right, which is why I think they're the best on the market right now. However, Panasonic WhisperSense FV-0511VQC1 is the best of the best. It is, in fact, the best bathroom exhaust fan on the market today.

Panasonic's exhaust fan lives up to its name and is truly whisper-quiet, despite being the most expensive model on my list. In addition, it may be utilized at three different air-moving rates and has a humidity and motion sensor (Dual-Sensor Technology). It's also covered by a six-year warranty and looks fantastic. There is nothing else one could ask for in a bath fan.

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