Mold can be dangerous, especially for those with sensitive airways or breathing issues. AC units are notorious for mold build up so it pays to choose only the best window air conditioners in order to prevent and keep mold out. We’ve put together a handy list of options for 2025’s best mold preventing air conditioners as well as how to keep mold out of your AC unit.
After careful consideration and research, the top rated window air conditioners to prevent mold are the highly rated LG 12,000 BTU Window Air Conditioner and Midea 8,000 BTU EasyCool Window AC Unit. Both options are not only top rated for mold prevention, but also full of nifty features.
Top Window AC Unit To Keep Mold Out: Quick Comparison
BEST RATED  |
LG 12,000 BTU Window Air Conditioner
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RUNNER UP  |
Midea 8,000 BTU EasyCool Window Air Conditioner
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Frigidaire FFRS1022R1 AC Unit
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Best Window Air Conditioner To Prevent Mold 2025: Reviews
1. LG 12,000 BTU Window Air Conditioner
Winner
Being Energy Star certified, it helps to save on energy costs.
Additionally, it has multiple fan speeds and an auto cool feature, all of which allow you to customize your coolness.
The air filters are washable, and therefore very important in preventing mold. Being 12000 BTU, it cools rooms as large as 550 square feet.
Pros
- High cooling capacity
- Washable air filters
- Quiet
- Customizable cooling settings
- Energy Star certified
- Energy efficient
Cons
- Time consuming installation
2. Midea 8,000 BTU EasyCool Window Air Conditioner
Runner Up
Certified Energy Star, this window air conditioner has an LED display, is easy to install, and has removable and reusable air filters to protect your surroundings and living space from dust and pet hairs.
This also prevents build-up of mold from inside the AC unit.
Easy installation in existing window frames makes this especially attractive, and all mounting accessories are included with the model.
Pros
- Removable and reusable filters
- Energy efficient with eco mode
- EasyTimer feature to create personalized cooling schedule
- Dehumidifying functionality
- LED display
Cons
- No display on remote
3. Frigidaire FFRS1022R1 AC Unit
Best Casement Window Air Conditioner
This 10,000 BTU air conditioner cools a room up to 450 square feet and provides dehumidification up to 3.4 pints per hour.
This model has built in electronic controls that allow you to easily select cooling options. Its full-function remote control allows temperature control and fan speed selection from across the room.
It features three different fan speeds and 4-way air direction control.
To control growth of mold, it has washable filters with front tilt-out access that captures dust from the air to keep your air conditioner working efficiently.
Pros
- Washable filters
- Multi speed fan
- Built in timer
- Sleep mode
Cons
- Not suitable for standard (double hung) windows
How Do I Keep Mold From Growing In My Window Air Conditioner?
There are several ways to prevent mold growth in air conditioner vents. One of them is to keep your air conditioner dry and clean.
Even air conditioners with washable filters should be cleaned with dry vacuuming, wiping or dusting. If moisture is introduced, it should be thoroughly removed every time.
In order to prevent mold formation in window ACs, they should be tightly fitted to prevent water vapor, moisture or rain from entering the room.
Additionally, window units should be slightly tilted toward the outside of the house to allow any accumulated water or moisture to drain properly.
All filters and grates in your air conditioner need regular cleaning and air filters need to be replaced periodically. Disinfecting filters and grates is also recommended to provide a mold resistant environment.
Additionally, an HVAC mold inhibitor can be put in place in order to prevent mold and mildew growth in your AC. This needs to be done carefully, while following the manufacturer’s instructions.
Mold Proof Air Conditioner FAQ
How Often Should Air Conditioning Units Be Serviced For Mold? Prevention?
It’s recommended that you should service your AC for mold at least once every 12 months.
Are UV Lights Safe To Kill AC mold?
Yes, UV lights are not toxic and can kill mold indirectly.
How Can I Tell If There Is Mold In My AC?
If there is a musty smell around your AC, black dust around air vents or unknown deposits of colored substances that are black, brown, green, white, pink, yellow or orange in color, then these are signs that there is mold in your AC.
Can A Window AC Unit Cause Mold?
The short answer is no. Mold can grow in any type of air conditioning unit if not properly installed, cleaned and maintained.
Does Air Conditioning Help Prevent Mold?
Air conditioners dehumidify the air in your home by removing moisture which keeps the environment dry, and helps to prevent the growth of mold.
What Kills Mold In Air Conditioners?
You can spray the filters, grate and interior of your air conditioner with a cleaning solution made of bleach, dish detergent and water. All components should be washed, dried and replaced before the AC is used. The process can also be repeated if needed.
Final Thoughts About The Best Window Air Conditioner To Prevent Mold
This handy list of techniques on how to keep mold out of your AC unit will help you to choose a window AC unit that provides a healthy air flow inside your home. The best mold prevention window air conditioners of 2025 are LG Window Air Conditioner and Midea EasyCool Window AC Unit.