We may not see a lot of humidity here in Arizona, but our bathrooms sure do. The small and enclosed nature of these spaces paired with high volumes of moisture create the perfect conditions for humidity buildup, water damages, and poor indoor air quality. What’s the solution? A good bathroom ventilation system. Here’s some helpful information and tips on selecting the right exhaust fan to properly ventilate your bathroom.

The Importance of Bathroom Ventilation

Bathrooms without proper ventilation can quickly produce serious problems. As moisture accumulates, you might notice that your drywall becomes damaged, your wood is warping, mold and mildew are growing, or unpleasant odors are arising. Cracking a window may help a little (where possible), but a good exhaust fan is a must. Even if you already have a fan, though, there’s a chance that your bathroom isn’t being properly exhausted. Fans that vent to the spaces between ceiling joints or to unheated attics will only reroute your problems elsewhere. For maximum effectiveness, the moist air needs to be exhausted outside of the home.

Tips for Selecting Bathroom Fans

Here are a few things to keep in mind when selecting an exhaust fan:

  • Airflow Capacity — Airflow capacity is measured in cubic feet per minute (CFM). To determine the right CFM for your fan, measure your bathroom’s square footage and apply 1 CFM per square foot. If your bathroom is larger than 100 square feet, you will need to add an additional 50 CFM for each toilet, shower, tub, or shower/tub combo and 100 CFM for whirlpools.
  • Efficiency Energy Star exhaust fans are the way to go. These units can use as much as 60 percent less energy than standard fans.
  • Noise Ratings Looking for a quiet exhaust fan? Select a unit rated at 0.5–1.2 sones. Noise not a factor for you? You may find that units rated above 4 are louder but less expensive.

The experts at Wolff Mechanical are ready to help you improve your home’s bathroom ventilation. We handle the home-comfort needs of residents throughout Phoenix, Scottsdale, and surrounding areas.

Our goal is to help educate our customers in the Phoenix Valley area of Arizona about energy and home comfort issues (specific to HVAC systems).

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