Simple Guide to the Bathroom Exhaust Fan

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If you get a foggy bathroom every time you shower you are lacking something important in your bathroom, a Bathroom Exhaust Fan. Fog in the bathroom can lead to mold, but this device can help.

What is a Bathroom Exhaust Fan?

This is a simple mechanical device meant to ventilate your bathroom. It is often ducted to the exterior of the house. Its work is to draw out stale, impure, and sometimes very humid air. When the Bathroom Exhaust Fan does this, it improves the quality of air indoor. Trust me any properly installed exhaust fan should get rid of excess moisture, humidity, odors, and many other pollutants across the bathroom.  

m Exhaust Fan Need to Be Vented?

The reason for venting is simple. Because Bathroom Exhaust Fan performs so many functions including the removal of excess moist air, it is greatly important that it is vented to release the moist air outside. Therefore venting should be done to the outside rather than the attic. This will prevent it from causing mold/ mildew.

Why Does Water Sometimes Drip from a Bathroom Exhaust Fan?

Water will sometimes drip from your already installed Bathroom Exhaust Fan. This is generally because of condensation. When being released to the outside, moist air condenses when passing through a cold and un-insulated duct. In turn it creates water than runs down through the fan. However, it could there could be more. If you see any signs of water stains around the ceiling next to the fan. This could symbol a leak coming from the vent cap. The vent cap is usually on the roof.

Installing a Bathroom Exhaust Fan

If you have never had a Bathroom Exhaust Fan in your home and you want a new one here is what you do.

Step 1: Shop for the Fan and Buy

You need to go through online stores and shop and buy your fan.

Step 2: Measure the Size of Fan/ Create a Hole

You should measure the size of your fan. Then create an entry point through the ceiling of your bathroom.

Step 3: Set Your Fan in the Ceiling

Set the duct connector in the ceiling and lay your fan. You can hold the housing across the ceiling lining up the fan connectors with slots.

Step 4: Check Your Manufacturer’s Instructions

Follow you manufacturer’s instructions. Follow every recommendations to the latter. Most manufacturers will recommend framing the part of the hole before securing your fan. Remember to keep the vent side clear.

Step 5: Attach the Ducts to the Connector

Use the HVAC tape to attach the ducts to the connector. Remove the junction box and then hook up the wiring. Now connect the house wires to the fan wires. Follow the wiring ground rules to the top.

Step 6: Replace the Junction Box

Once you have replaced the junction box. You can turn on the power. If your Bathroom Exhaust Fan sounds weird/ loud like there is a problem, switch it off and recheck. It there is no alarm, add the mounting springs and push the cover in place.

What to Consider When Buying a New Bathroom Exhaust Fan

When purchasing a new Bathroom Exhaust Fan it is very important to consider the following.

The Size of Your Bathroom

The size of your bathroom plays a fundamental role. It will determine the number of CFMs that you need.

The Cubic Feet per Minute (CFMs)

This is the measurement of air flow in the Bathroom Exhaust Fan. The larger the room the higher the CFMs your exhausts fan requires. It is best to find out from the experts the ideal fan for your bathroom size. A medium sized bathroom will require between 70 to 90 CFM’s for ideal performance.

Look Through User Reviews

This is really important. If you are choosing a Bathroom Exhaust Fan randomly, go with reviews. What previous users say about the fan type that you are looking through could play in giving you the very best choices.

The Price of the Exhaust Fan

Pricing is very important you can’t buy what you can’t afford. You can’t also go for anything that you haven’t budgeted for. In short, it is very important that you find out the price and compare it with your budget. You should be able to get the best offer through this.

Think About the Fan’s Brand

Well brand isn’t that crucial but some brands are knows to manufacture better Bathroom Exhaust Fans than the others. You can go with brand. But this is only necessary when you can’t find the user reviews to go with.


The Bathroom Exhaust Fan of your home can only perform efficiently if there is proper maintenance and care. Find out what maintenance practices your fan needs to perform efficiently.

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Joe Carrow

Product reviewer & passionate blogger. Beside writing for this blog, I spend my time crafting research based contents for HuffingtonPost, Lifehacker & Forbes!

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