No Central Air? No Sweat. These Tested Window Air Conditioners Cool Down Spaces Fast

There’s a reason my family owns several of these air conditioners: it’s a no-frills model that’s inexpensive, reliable, and well-sized for rooms up to 150 square feet (most small- to medium-sized bedrooms). My family was gifted one, and we loved it so much that we purchased more for our kids’ bedrooms because the knobs are easy to use and there are no smart features for them to mess with.

This air conditioner has a simple two-knob control system. The top knob controls the cooling setting, while the bottom knob controls fan speed, and you have the option to run the fan with or without cooling. The appliance’s thermostat cycles the air conditioner on and off to keep the temperature within range based on the temperature you set with the top knob.

The lack of smart tech means it can only be controlled from the knobs. That was a pro for us, but it may be a con for other shoppers. Still, it’s an efficient window unit that won’t hurt your wallet and its washable filter saves you money on having to buy replacements.

Full Frigidaire FFRA051WAE Window Air Conditioner Review

Key Specs

This Windmill AC stands out for combining energy efficiency with reliable performance and quiet operation, all of which make it especially useful in bedrooms up to 350 square feet. Its CEER rating of 15 is one of the strongest in this lineup, and the inverter design helps it maintain temperature without the hard stop-start cycling of many traditional window units.

On lower settings, our testing team found it to run subtly enough for overnight use, and we loved how the display dims automatically for better sleep. The fan alone can handle cooler evenings, while hotter days call for full cooling. The app is intuitive and truly smart, letting you adjust settings remotely and sending helpful alerts when it’s time to clean or replace the filter. Maintenance is a key factor in air conditioner longevity, so that’s a huge plus.

Similar in design to our best overall pick, this Midea window unit uses a true U shape so the window can close deeper into the body of the air conditioner. The end benefit is quieter cooling: Once it’s properly installed, the window acts as a sound barrier between the compressor outside and your room inside. That makes it a strong choice for offices up to 350 square feet, where excess noise can become an unwelcome distraction.

The U shape also means the window does not need to be all the way closed—you can lift the window midway up the body of the unit, and let in air from the outside without uninstalling the entire air conditioner. The biggest issue with this option is that it requires a more skilled hand when installing it, with many customers reporting difficulty doing it themselves.

Key Specs

We’ve been using this beast of an AC to cool the entire first floor of our home with great success for a few summers now. It’s a solid pick for larger rooms up to 700 square feet, per the unit’s specifications, which is about the total square footage of our first-floor foyer, dining room, living room, kitchen, and pantry. Depending on your home’s layout and airflow, it’s hard to guarantee it will successfully and sufficiently cool multiple spaces, but it packs serious power for big rooms, too. That said, it’s noisier than other models, so take that into consideration.

While we didn’t need smart features, it’s nice that it connects to Wi-Fi so you can control settings from your phone (or with the included remote), and the interface is straightforward. The unit is designed with energy efficiency in mind, which helps to keep operating costs reasonable for its size. Installation is fairly standard with the included kit, though the unit is heavy, so you’ll want an extra set of hands. It’s likely you’ll need a support bracket, too.

Overall, this is a dependable option for cooling bigger living spaces without overcomplicating things or having to install a mini-split.

Key Specs

If you need an AC that can bring down the temperature quickly in a medium-sized room, take a look at this model. This smart GE unit impressed our team with speed, cooling a 100-square-foot room from 85 to 75 degrees Fahrenheit in about 15 minutes, and it’s rated for spaces up to 350 square feet. That powerful fan helps move cool air farther into the room, so it’s a good fit if you want quick relief without jumping up to an oversized unit that will drive up energy costs for no reason.

The standout feature here (and the reason for that great performance) is the powerful fan, which kept air moving even when full cooling wasn’t necessary. We love the unit’s eco mode, which cycles the compressor and fan to maintain temperature without overworking the unit. We found the installation to be manageable, but easier with two people. We love that GE includes insulation, though you may need to purchase some additional products to create a perfect seal depending on your window. The main drawback is the app, which was difficult to connect to, despite troubleshooting. Customer service at GE is great, though, and the one-year warranty gives peace of mind.

Read Full GE 8,000 BTU Air Conditioner Review

Key Specs