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12 Best Ductless Bathroom Exhaust Fan In 2024

Bob Vila
  Feb 26, 2024 5:10 AM

We independently study, test, and review 12 Best Ductless Bathroom Exhaust Fan products before making recommendations. We’re testing the Panasonic, Broan-NuTone, BV, Hon&Guan, Tech Drive, LPS lowpricesupply  for a for a future update to this guide.


In recent years, ventless (or ductless) bathroom fans have been increasingly popular for their ability to remove unpleasant odors and circulate air in the room.

It is much easier to install and less prone to generate drafts in adjacent rooms as compared to ductless models.

It might be difficult to choose the best ventless bathroom fan because there are so many different brands and types available nowadays.

In order to aid you, I've taken a deeper look at the best bathroom exhaust fans and will help you choose the right one for your bathroom.

Let's get started right away!

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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

Choosing a ductless fan has a number of factors (through the wall or recirculating vent fan). Nevertheless, the following considerations must be given top priority:

Fan capacity (in CFM)

The amount of air a fan can move in a minute is measured in cubic feet per minute (CFM). For every square foot of space, you'll typically require about 1 CFM. As a result, 70 CFM is required to cool a 70 square foot bathroom.

Noise (in sones)

It's important to note that even the best bathroom exhaust fans are extremely quiet. There is, however, a constant whirring noise while the engine spins. The sound should be as low-noise as feasible. Many experts advise using units with less than four sones.

Filter quality

The quality of the filtration process is critical for recirculating ventilator fans. In fact, some fans are so powerful that they can completely eliminate odors that were previously present. Some of these filters can be washed and reused for years. Double-filtered models are also available. Something to ponder before making a decision.

Proper Venting

Ventilation in bathrooms can be set up so that the air is exhausted into the joint space between the ceiling joists in some cases. While this isn't necessarily a bad thing, it can lead to water damage on the floors, walls, and ceilings when the bath is positioned in the centre of the house. Exhaust fans can be a great solution for this problem. This is unquestionably the most secure and practical approach to take. It is essential that you have a functionally superior fan that keeps your premises dry.

Air Flow Capacity

It is vital that you choose the correct bathroom exhaust system for your home because different exhaust systems have varied airflow capacity. Every shower and bath in your home should have a flow rate of 50 cfm. Working with a competent specialist who can advise you on the best solutions for your needs is really beneficial.


Why Should I Go With a Ductless Bathroom Fan?

Ducted bathroom exhaust fans, or "regular," are far more popular in homes around the world. This type of ventless appliance can, on occasion, be a superior choice.

It is well known that "normal" bathroom exhaust blowers transport excess moisture out of the bathroom and into the outside air.

But for those who have a half bath or powder room, this type of exhaust fan isn't necessarily the best fit.

After all, the rooms aren't as large as a typical bathroom and contain far less moisture than their larger counterparts. Unpleasant odors are a considerably bigger issue in powder rooms and half baths.

Furthermore, it is not always feasible to construct a long duct to transport humid air to the outside. A ventless bathroom fan is a good option if you simply need to circulate a modest amount of air in your bathroom.

Why Do These Appliances Use Charcoal Filters?

These bathroom fans use activated charcoal filters to remove undesirable scents and odors from the air.

An extremely porous substance, activated charcoal has millions of microscopic holes. Consequently, it is able to effectively remove unpleasant odors from a space. This substance's surface has the ability to bind with molecules from foul scents that are blowing through a restroom.

Activated charcoal filters can also remove benzene and other volatile organic pollutants.

The kitchen range hood is an example of a household device that functions similarly to a ventless bathroom fan. Various food odors and humidity are dealt with by the use of filters.

How Do Ducted And Ductless Exhaust Fans Work? 

The electric motor is at the heart of every bathroom fan.

When the motor is turned on, a squirrel cage blower wheel with blades on its edge is rotated by the motor's rotation. An enclosure called a venturi, which is located near a register vent in your ceiling or wall, houses the wheel as it spins.

Squeezing out any excess air as it travels through the venturi, the fan directs the air directly to an exhaust pipe or filter, depending on whether the unit is ducted (for ductless models).


Compared to ducted bathroom fans, duct-free bathroom heaters are a viable alternative. For those cases when a ducted exhaust fan is not an option, there is the alternative of using a ductless exhaust fan.

Your bathroom will be significantly more odor- and particle-free as long as you choose the proper one.

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