Best 50 CFM Bathroom Exhaust Fan ( 3 great options)

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I hope you have used my bathroom fan CFM calculator to figure out the optimal airflow needed for your bathroom.

50 CFM is on the low end of the spectrum for bathroom fans. But it is perfectly acceptable for bathrooms up to 50 sq. ft.

Often 50 CFM exhaust fans are used for 1/4 baths and laundry rooms. Since those types of rooms don’t create much water vapor it is not necessary to have a high airflow fan.

If you would like to learn more on how to choose the right bathroom fan for you. Head out to my guide with 6 easy steps to finding the right bathroom fan.

Enough chit-chat, you came here to find the best 50 CFM bathroom fan.

Here are what I consider the 3 best 50 CFM bathroom exhaust fans on the market today.

This is not a list of random 50 CFM fans. If I were in the market for a bathroom fan today, I would choose one from this list.

Air King BFQ50 – The Quiet Option

The Air King BFQ50 ticks all the boxes; quiet, energy efficient, reliable. Only one thing lets it down. It’s the backdraft damper.

It comes with a gravity-operated plastic backdraft damper. They tend to be noisy when it is very windy outside. This type of damper is also not very air-tight, so you might feel a slight breeze coming from the fan when it is very cold out.

To be fair, this is the case with almost all integrated backdraft dampers. I was not able to find a 50 CFM exhaust fan with a spring-loaded damper.

Related Article: Are Bathroom Fans Necessary

This is why I recommend removing the original plastic damper and install a proper spring-loaded rubber-sealed backdraft damper.

I always rave about the AC infinity dampers. I truly believe that they are the best on the market. They are a bit pricier than the basic dampers out there, but you get a more premium product as well. Here is a 4″ damper from them. (amazon link)

Airflow50 CFM
Duc size4″
Noise Level0.6 Sones
UL listed for installation over a tub or shower on a GFCI circuit.Yes
Suitable for continuous operationYes
Yearly running cost (3 hours per day)$ 2.30
Yearly running cost continuous ventilation$ 18
Warranty5 years
Amazon linkView

Broan-NuTone 688 – The Sound Privacy Option

Broan-NuTone 688 Ceiling and Wall Ventilation Fan, 50 CFM 4.0 Sones, White

Most people prefer a quiet bathroom fan, one that is barely noticeable. While others like the fan to make enough noise to provide sound privacy.

Related Article: Where Should The Bathroom Exhaust Fan Be Placed

This is the fan for the job. At 4 sones it will be noisy enough to conceal any embarrassing bathroom noises. While it is cheap, it is not very energy efficient.

There is another option for bathroom sound privacy. A bluetooth bathroom speaker. In my opinion, it is a better choice than a loud bathroom fan.

Do not buy this fan if you plan to have it running all the time. The noise will surely drive you mad when running in the middle of the night and as you can see from the table, the running costs will be very high when running 24/7 every day.

Airflow50 CFM
Duc size3″
Noise Level4 Sones
UL listed for installation over a tub or shower on a GFCI circuit.Yes
Suitable for continuous operationYes
Yearly running cost (3 hours per day)$ 11
Yearly running cost continuous ventilation$ 94
Warranty1 years
Amazon linkView

DELTA SLM50 – The Energy Efficient Option

Delta SLM 50 is the most energy-efficient exhaust fan on the list. Even if you have it running 24/7 every day it will only cost $ 6.70 per year in electricity costs.

It is by far the most expensive exhaust fan on the list, but depending on how many hour per day you use it, it might be worth it since the energy savings will make up for the price difference.

Airflow50 CFM
Duct size3″
Noise Level1 Sone
UL listed for installation over a tub or shower on a GFCI circuit.Yes
Suitable for continuous operationYes
Yearly running cost (3 hours per day)$ 0.8
Yearly running cost continuous ventilation$ 6.7
Warranty3 years
Amazon linkView
Bathroom exhaust fan airflow CFM chart

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