What Size Should My Bathroom Ventilation Fan Be? 07/28/2017Ordinary tasks like showering, bathing and shaving can put home-destructive humidity into the air in your Cape Coral home. There’s good news however—a modest bathroom ventilation fan can save you from distorted wood, mold growth, cracked drywall and other problems connected with a humid bathroom. Even if you have ventilation fans in your bathrooms, do you know if they’re the correct size? Are they as quiet and energy efficient as they could be? Comfort Zone Inc is here to answer your questions. Today’s bathroom ventilation fans are small and modern and they work more quietly and economically than ever before. You’ll find a great range of options, from average fans that will get the job done to fans with fitted heat lamps, motion sensors and heat-exchanger ventilation that helps avoid warmed air from escaping through your ventilation. While you have a lot of bells and whistles to choose from, the most imperative characteristic of your fan is whether or not it’s large enough to do its job. Assessed by the cubic feet per minute (CFM) of air they move, a bathroom ventilation fan should be able to swap out the air in a bathroom at least eight times an hour. With a standard 8-foot ceiling, your ventilation fan should have a CFM rating almost as high as the number of square feet in your bathroom. So, if your bathroom is 5 feet by 8 feet, a CFM rating of 40 would be adequate. If you have a higher ceiling, the equation gets a little more difficult. You’ll want to multiply the width of the room by its height and length, divide it by 60 and multiply by 8. Or, to keep it straightforward, you can heed HGTV’s advice for bathrooms larger than 100 square feet – determine your CFM requirements by increasing 50 CFM for every toilet; 50 CFM for each shower, bath and combo; and 100 CFM for each whirlpool. If you’re not sure if your bathroom ventilation fan is the right size, or you know it’s come to the point for a new one, give the experts at Comfort Zone Inc at call at 239-574-2327. We’re here to help you ensure you have a ventilation fan that will run hard to care for your home and keep it comfy. You can even set up an appointment with us online if that’s simplest for you.