Home Improvment

Everything you need to know about bathroom exhaust fans

When you are a homeowner who is looking to install, understand, or purchase bathroom exhaust fans, then you have come to the right place. This is an in-depth review of everything you need to know about this bathroom exhaust fans, how they work, the benefits, types, and costs. Not a lot of information is available online on bathroom exhaust fans when they are an important element in our home.

Purpose and benefits

The bathroom tends to have a lot of moisture, and the bathroom exhaust fan is usually the perfect solution to get rid of this moisture quickly. A dry bathroom is just as important as having a clean kitchen. The bathroom fans also help to eliminate and control the bathroom odors. Do you know that cleaning agents produce fumes that could potentially cause health problems? Well, the bathroom exhaust fans also help to combat these fumes ensuring your safety is well taken care of.

The bathroom exhaust fan has several benefits that make it a piece of must-have equipment for all homes. Highlighted below are just a few of these benefits.

1. Humidity reduction

Excessive humidity is not ideal for your bathroom for several reasons including the fact that it will destroy your bathroom walls. Wallpaper and paint peel off the bathroom walls when the moisture is constantly high. When you don’t take care of this moisture, there will be a huge mold accumulation in your bathroom that might just prove difficult to handle in the long run. Hiring a restoration service is quite pricy especially when you live on a budget. I am sure you clearly understand the common phrase, prevention is better than cure.

2. Odor elimination

Bathroom exhaust fans are key when you want to control odor in your home. Sometimes unpleasant odors occur in the bathroom area and the exhaust fan will help you to quickly get rid of the problem. Once you maintain the odor in the bathroom, it is easier for the next person to comfortably use the bathroom. One of the most uncomfortable moments all homeowners dreed is having a visitor use a bathroom with an unpleasant odor.

3. Reduction of airborne contaminants

When cleaning your bathroom, you usually use aggressive chemicals without even realizing it.  The cleaning agents have chemicals that could cause potential health problems when inhaled. Small children are usually most affected by these chemicals making the use of exhaust fans pretty much paramount. Exhaust fans also help eliminate the buildup of mold thereby eliminating spores in the air. Remember that you spend a considerable amount of time in the bathroom. It is therefore vital that your bathroom area is a safe area for all the family members including the elderly.

Things to consider when purchasing bathroom exhaust fans

Purchasing the best exhaust fans that suit your needs seems easy when it isn’t in reality. There are a lot of options available that make it rather difficult especially when you don’t know what you should be considering. When you decide to shop online, you will find several bathroom exhaust fan options and if you are not careful you just might end up purchasing the wrong one. Below are what you need to consider when purchasing bathroom exhaust fans.

1. Noise level

First, understand that bathroom exhaust fan sound levels are not rated in decibels, but rather in sones. This measurement tries to encompass how a listener perceives the sound in the bathroom making it more practical. The lower the sones rating, the quieter the exhaust fan and vice-versa. A good bathroom exhaust fan should have an incredibly lower sones rating of 2 and below. Your bathroom exhaust fan should be as quiet as possible because no one loves to hear noises while in the bathroom.

2. Ventilation requirements

The size of your bathroom will dictate the ventilation requirement you need. In simple terms, when you have a large bathroom, you will require an exhaust fan with a higher CFM rating. At first, I didn’t quite understand how the CFM rating was calculated and how it affected my purchase. After extensive research, I discovered that the minimum CFM rating for your bathroom should be a multiplication of your bathroom’s length, width, height, and a constant variable 0.13. Typically most exhaust fans are rated somewhere between 50 to 110 CFM.

 3. Moisture sensing switches

A good bathroom exhaust fan should include a moisture sensing switch to help you conserve energy. Leaving your fan on the whole day could cost you a lot in monthly bills if you are not careful. Yes, you could switch your exhaust fan on and off manually periodically, but that is a lot of work and you are bound to forget now and then. The modern bathroom exhaust fans include a moisture sensing feature that automatically turns them on and off. This means that your fan will turn on when it detects an increase in moisture and turn off once the moisture is taken care of.

Common installation problems

When you don’t properly install your bathroom exhaust fan the noise level will be high. Most of the time, you may have simply forgotten to insulate the fan correctly thereby leading to the increased noise level. If you are not a handy person, then consider hiring a professional to install the exhaust fan. Yes, you will have to incur extra installation charges but it is worth it.

You need to also ensure that you properly remove the old exhaust fan before installing a new one. Do not install a new exhaust fan before removing the old one first. You don’t need two exhaust fans in your bathroom mostly due to the noise level increase.


When it comes to bathroom exhaust fans there are a lot of options to choose from in the current market. You must take your time and perform extensive research before making any purchase. Look at different customer reviews to determine which product will best suit your needs. Remember that you need to consider your bathroom size, special features, noise level, and budget.