Broan-NuTone 688 Ceiling and Wall Ventilation Fan Review

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Last Updated: 12/16/2020

Product Overview

The Broan-NuTone 688 Ceiling and Wall Ventilation Fan, 50 CFM 4.0 Sones is a multi-purpose ventilation fan that can be installed in a kitchen, bathroom, or more. It has a white plastic grille which is lightweight, easy to install, and will not interrupt the design of your bathroom or other space as the clean white grate blends right in.

It has 50 CFM flow rate as well as 4.0 sones which provides a steady, peaceful, ventilation. This is a less powerful ventilator than say a 70 or 80 CFM ventilator, so it uses less energy and makes less noise. It provides a steady flow of clean air that is void of humidity, germs, mildew, and mold so you can breathe easier.

This fan is super easy to install and doesn’t require any tools to get set up. It doesn’t require a professional either, even if you’re inexperienced with home improvement the tool-free installation process is easy enough that almost anyone can do it. It can easily be switched out with an existing exhaust fan as well.

Broan-NuTone 688 Bathroom Exhaust Fan

Broan-NuTone 688

  • 50 CFM, 4.0 Sones
  • 4. 0 Sone rating 
  • Duct Diameter: 3 inch
  • For bathrooms up to 45-square-feet

Why is Bathroom Ventilation Essential?

For bathrooms proper ventilation helps to prevent mildew and mold from developing due to the warm and moist environment. Ventilators circulate and clean the air to remove humidity and bacteria that tend to linger, and can have poor health results as well as causing visible mildew to build up on your grout, tile, and appliances.

In the kitchen a ventilation fan is helpful for preventing smoke from cooking from lingering in the air, which may be bad to breath in, and can damage your ceiling and walls. The smoke from cooking can also set off a smoke alarm which can be obnoxious to try to set off. If you boil a lot of water in the kitchen or stew a lot, there is a chance of humidity being a problem in the kitchen as well.

Product Features

  • Versatile Design

This is a great fan because it is made to be integrated with a bathroom, kitchen, or other space. If you’re looking for a ventilation fan, but are overwhelmed with options that don’t suit exactly what you’re looking for, this fan might be the one for you because it can be installed in almost any space without any tools necessary. The look of the fan is great because the decorative grille fits right in with all sorts of design styles and the white color doesn’t interrupt anything about the design either.

  • No-Tool Installation

This fan is easy enough to install that even beginner home improvers can handle it themselves without the help of a professional and it doesn’t take long at all to set up. This ventilation system is so easy to install that it requires absolutely no tools to get it completely installed. After it’s installed you can rest assured that this a fan that will last for years to come. It is incredibly easy to install and is made for long-lasting performance.

  • Energy Efficient

With a moderate flow rate of 50 CFM and 4.0 sones the operation of this powerful ventilation machine is very energy efficient. It uses far less energy than most other ceiling fans, including other models from Broan, and will save you money on your energy bill compared with the less energy-efficient models available.

  • Extras

  • Permanently lubricated motor for long-lasting performance.
  • Motor comes in and out so you can clean it, extending the lifetime of the product.
  • No screws or tools required for installation.
  • Decorative plastic grille.
  • Purifies the Air

This ventilation job does an effective job of clearing the air of odors, smoke, animal hair/dander, and chemicals in only minutes or less. You can count on this ventilation system to improve the quality of air and filter out any sort of pollutants quickly and efficiently.


  • Less Powerful Than Other Models

The 50 CFM is less than most models of bathroom ventilation fans that operate at 70 and 80 CFM, which is perhaps due to it being made for versatile locations, not just for bathroom operation, but also kitchen and living room. It is quiet and steady so it can actually be left on in the bathroom 24/7 without running up your energy bill.


The Broan-NuTone 688 Ceiling and Wall Ventilation Fan, 50 CFM 4.0 Sones is a great bathroom fan and is versatile enough to be installed in a variety of locations. It provides a steady flow of air that circulates and purifies the air, removing all sorts of pollutants that can be harmful for human health. Proper ventilation is essential to the health of you and your family, and this model of highly efficient exhaust fan from Broan-NuTone is a great option for many homes.

It gets the job done efficiently without sacrificing performance. The motor is super long-lasting. It is permanently greased for smooth operation for a lifetime. It is also easy to clean as the motor easily snaps in and out of the body of the ventilation fan. The fan comes with a free one year warranty from the manufacturer.

Charles Jasper

Charles Jasper is the owner and main author of Home Climate Center. He has a degree in Engineering and 20 years experience on working on HVAC systems. He has a passion for everything related to home improvement and loves to travel. When he is not working, you might find Jasper working on projects around the house or organizing a camping trip.

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