Choosing an Exhaust Fan for Your Bathroom

Good ventilation is important for any part of your house, but for bathrooms, where there is excessive moisture and humidity, proper ventilation is particularly important.  Bathroom fans are more than just aesthetic additions – they provide a function by circulating air inside a limited space. These ventilation devices are also key in preventing mold and mildew growth, which can be dangerous to your health, your furniture, and your bathroom essentials.

After you use the shower or bathtub, your bathroom incurs excess moisture, which you can often see on your mirrors, walls, and fixtures. Using a good exhaust fan will drain all of that excess humidity from the bathroom to prevent possible mold growth and simultaneously enhance the quality of air inside your home. An exhaust fan will also prevent air pollutants from lingering inside the house.

When choosing the right kind of exhaust fan for your bathroom, there are several factors to consider. One is the capacity of your exhaust fan. You need the size of fan that best fits the size of your bathroom. To measure the right capacity of your bathroom fan, determine the volume or size of your bathroom.  Divide that figure by the CFM (cubic feet per minute) air exchange required in the bathroom. Typically, 7.5 is the minimum CFM. The resulting number is the fan capacity you will need for your bathroom.

Another is the level of noise. Since bathrooms can be a place to relax, it is nice to find an exhaust fan that is relatively quiet. Choose a low SONE rating for your exhaust fan. A rate of 0.5 or less is ideal for an exhaust fan, and models with this rate normally consume less energy, running at around 20 watts. SONE rates of above 1 .0 are noisy and usually run on 50 to 80 watts.

The control of your exhaust fan is another good factor to consider. Select what type of control you want to use when turning your fan on and off. Will you be okay with manually turning the switch on and off or will a remote control be more convenient?

Cleaning for your exhaust fan is also a big consideration, as cleanup is required regularly due to its frequent usage and contact with dirt and moisture. Choose an exhaust fan that is easy to clean and remove.

Lastly, consider the aesthetic of your fan. Select a color and design that will match the overall theme of the room, so you can maintain elegance and beauty inside your bathroom.

Heather & Alan Davis
Oklahoma City Realtors


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  1. #1 by nutsfortreasure on October 25, 2012 - 10:53 am

    For 24 years I have wanted one in my home now I know what to look for thanks!

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