While a minimal level of moisture in your home is ideal to protect the air from becoming too dry, spaces such as your bathrooms are prone to excess moisture. All your bathrooms will need some kind of ventilation in order to exhaust the excess moisture and odor. That’s why it usually becomes necessary to install a bathroom exhaust fan or sometimes a bathroom air conditioner. 

A bathroom air conditioner improves the quality of indoor air and helps create a more comfortable environment. Bathroom air conditioning especially becomes a necessity if you have a bathroom mirror or a dressing area inside.

Importance of reducing humidity in bathrooms

steam in bathroom

When you take a hot shower or bath, you’ll typically notice your bathroom mirrors, windows, and walls covered in steam. Unfortunately, the problem is much more serious than the mere inconvenience of having to wipe off the condensation. Moisture buildup in the bathroom – or any part of the house for that matter – can be hazardous to one’s health. 

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Moreover, it promotes the growth of mold behind bathroom walls. Excess moisture can over time damage surfaces such as drywall, trim, and bathroom cabinets. And, these issues can be expensive as well as time-consuming to fix. 

Therefore, it’s important to have an adequate ventilation system in place to limit the humidity produced while showering or bathing.

Having a bathroom air conditioner vent 

Air conditioning vents aid in the removal of warm air as well as moisture from the bathroom. These AC vents, which normally transport air out via the roof, may or may not be connected to other portions of the house’s ductwork. They perform a crucial function in keeping bathrooms safe and clean. So, if you’re adding a bathroom to your home, it’s a good idea to include an AC vent during the bathroom remodeling process.

Read more: Why I can vent my bathroom into the attic?

Air conditioner in the bathroom

bathroom dehumidifier

Because bathrooms are small, damp spaces, they are especially vulnerable to humidity and the mold and mildew that can form in moist environments. Installing an AC or a dehumidifier in the bathroom can be a simple option to quickly and effectively eliminate ambient humidity.

Having said that, a bathroom exhaust fan works well too. 

Cooling down a bathroom without AC

Most homeowners want to keep any mugginess away from their bathrooms. You need to get the air circulating in your bathroom. It will not only prevent unpleasant odors but also keep your bathroom fresh and cool. 

A good tip is to turn on the bathroom fan while and after you’re using the space. It will help with the air flow and remove the heated air. If your bathroom lacks an exhaust fan, you can utilize a window to let out the steam and let in the fresh air. Also, after you’re done bathing, you can wipe down the bathroom walls with a dry cloth or towel. 

Fixing steam problems in the bathroom

bathroom fan

Maintaining an optimal level of humidity will help you prevent potential problems from occurring. 

  • Before using hot water, turn on the ventilation fan located in your bathroom’s wall or ceiling. Turn it off only after the steam has evaporated. 
  • Crack open a window or the bathroom door while you shower or bathe to let the steam escape easily. If it’s too cold to open the window or you don’t want to keep the door open, do so right after the shower until the steam dissipates.
  • Consider trimming the bottom of the bathroom door to leave a wider gap. It will allow the steam to escape easily through the gap.
  • If you’re taking just a hot water shower, keep some cold water in the bathtub. It will help counteract the steam.
  • Set your thermostat to about 70 degrees Fahrenheit 30 minutes before getting into the shower. It will raise the bathroom temperature and help cut down on the steam.
  • Keep a dehumidifier in the bathroom and use it whenever you shower or bathe. The appliance will trap a good amount of moisture from the air.
  • Regularly have your bathroom checked for mold or other types of damage caused by high humidity and moisture. And, make necessary repairs.

Portable bathroom ACs

Portable air conditioners are ideal for small rooms such as bathrooms. The tiny ACs are especially convenient for renters or those who move frequently and do not want the hassle of installing a full-fledged air conditioner. The average cost of a portable air conditioner usually runs between $250 and $500, depending on the size, model, and features. You can also choose between a portable air conditioner with a single hose or one with a double hose.

Do you want to know the HVAC replacement cost for your project? Try our estimator tool.

Hiring a pro

If you’re simply buying a portable bathroom AC or replacing an old AC with a newer unit, you’ll be able to work around the installation by using the existing vents and electrical connections. 

However, if you’re installing a new bathroom AC, it’s best to leave the job to a licensed professional. The project will require extensive electrical wiring and installing vents running all the way to the roof. An HVAC contractor will be better equipped to handle such a task.

Last thoughts

When a bathroom in an older home lacks a good heating and cooling system, the homeowner’s main concern is the structural damage or the growth of mold and mildew caused by excess moisture and humidity from hot showers. Very high humidity levels can also lead to health problems, including asthma and other respiratory diseases. 

The easiest solution is to install an exhaust fan, a bathroom AC, a ceiling fan, or a bathroom window to reduce the moisture and steam from the room and help it dry naturally.

Is a bathroom air conditioner really necessary? was last modified: November 22nd, 2022 by Ramona Sinha
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These sound great, since I ruined the plumbing in mom’s bathroom, I need to clean a lot of moisture, maybe this will help me