8 Best Window Air Conditioners of 2026

Midea's U-shaped design puts the unit in two halves on either side of the window sash, which is why Midea says you can freely open and close the window with it installed. The MAW08U2QWT is the 8,000 BTU DOE model, rated for spaces up to 350 sq ft, and it cools, dehumidifies and ventilates. Midea quotes a variable speed inverter that is up to 35% more energy efficient and compressor noise as low as 32 dBA, the lowest figure on this list, and it describes the unit as 10 times quieter than traditional air conditioners. Control runs through the SmartHome app, an Apple Watch or voice assistants, and an AI ECO mode monitors energy use. FlashCool mode is rated for 35% faster cooling, and airflow reaches up to 20 feet. A quick-snap bracket and adjustable window panels come in the box. Downsides are a weight of 54.67 lbs and a 1-year warranty. Midea's store lists it at $350.00 with free shipping.

The ClearView design hangs most of the unit below the window sill, so the window keeps its full view and, GE says, can still open and close with the unit in place. The PHNT10CC is the 10,300 BTU inverter version, rated for rooms up to 450 sq ft and Energy Star certified. GE says the inverter ClearView models use 34% less energy than a DOE minimum efficiency model of comparable capacity, and it rates the unit as low as 40 dB. The flex-depth chase expands to fit walls from 4.5 to 13.75 inches thick, and the window must be 20 to 40 inches wide with a 13 inch minimum opening. SmartHQ Wi-Fi adds energy reports, geolocation that adjusts settings when you head home, and Alexa or Google Assistant control. A built-in pump carries condensation outside. The catch is availability: GE marks it as no longer being manufactured and sells it at a $514 clearance price, down from $569.

Windmill sells its window unit direct, and the main selling point is setup: the install kit comes pre-assembled, and Windmill offers a flat $99 professional installation through Taskrabbit. The 6K BTU Original is rated for rooms up to 250 sq ft and was $269 at our check, down from $339. The WhisperTech versions add a dual air intake that Windmill says cools faster and more efficiently; the 8K WhisperTech was $359 and the 12K WhisperTech $449, while the 8K Original and 10K WhisperTech were sold out. Windmill quotes up to 15.0 CEER for the line and noise from 42 dB. Air leaves at a 45 degree angle, the filter combines antimicrobial-protected mesh with activated carbon, and the side panels are double-insulated, which Windmill says is twice the Energy Star insulation requirement. Control comes from the app, voice assistants, a remote or soft on-unit buttons, with three cooling settings and three fan speeds. The 42 dB floor is louder than the inverter picks above it.

The Inverter Plus is Midea's conventional box-style inverter unit, and the MAW12RV1CWT is the 12,000 BTU DOE size for spaces up to 550 sq ft, the largest room rating on this list. Midea rates it at up to 37% energy savings compared with DOE CEER minimum requirements and says the Inverter Plus compressor adjusts cooling automatically for quiet, steady operation. FlashCool mode is rated for 30% faster cooling, advanced dual filtration targets indoor air quality, and the unit cools, dehumidifies and runs as a fan. Control runs through the SmartHome app, a smart watch or voice assistants. The 3-year warranty is the longest we found here. Midea gives noise only as 7 times quieter than traditional ACs, with no dB figure, and the standard shape blocks the lower window. The same line comes in 10,000 to 24,000 BTU sizes. Midea's store listed it at $439.99 with free shipping, and a later load showed a 15% promotion at $373.99, so we list the price as pending.

The LW8017ERSM1 is LG's current version of the long-running LW8017ERSM, an 8,000 BTU smart window unit rated for rooms up to 340 sq ft. Its strength is price: LG's US store lists it at $319, the lowest verified price on this list for a Wi-Fi unit from a major appliance brand. The LG ThinQ app adjusts temperature, changes modes and monitors energy use, and the unit works with Alexa and Google Assistant. LG lists an Energy Saver mode, 4-way air direction, auto restart after a power cut, a 24-hour timer and sleep mode, and a remote comes in the box. LG says it installs quickly in most windows. The trade-offs are clear in what LG does not list: there is no inverter and no published noise rating on the product page, and the standard box shape takes up the bottom of the window. If you need more capacity, the same page sells 10,000, 12,000 and 14,000 BTU sizes at $389, $489 and $579.

Friedrich builds the Chill Premier around what it calls QuietMaster technology: heavy-duty insulation on the inner wall, a stiffened sheet metal casing, wide discharge vents and counterweights to dampen vibration. Friedrich says that makes it as much as 25% quieter than competitors, based on its own lab testing, but it does not publish a dB figure. The CCF08B10C is the 8,000 BTU fixed-chassis model for window installation only. Friedrich's 2026 brochure lists an EER of 11.5, a CEER of 11.4, 690 watts at 6.7 amps, 188 CFM of airflow, moisture removal of 1.0 pint per hour and an estimated yearly energy cost of $65. It uses R-32 refrigerant and fits windows 23 to 36 inches wide. The FriedrichGo app handles schedules and remote control, with Alexa or Google Home voice support, and the unit adds 8-way airflow, a sleep setting, auto restart, a 24-hour timer and a washable filter with an alert. Friedrich sells through dealers, so we could not verify a price on its site.

The AHEK10AC is GE's standard smart window unit rather than one of its Profile models, and it covers rooms up to 450 sq ft with 10,000 BTU of cooling. It shares much of the SmartHQ feature set with the pricier ClearView: app control from anywhere, energy reports, geolocation that adjusts settings when your phone heads home, and voice control through Alexa or Google Assistant. Eco Mode shuts off the fan and compressor once the room is cool enough, and a filter reminder tells you when to clean the filter. GE lists three cooling settings and fan speeds, 4-way adjustable louvers, power interruption restart and a 24-hour on and off timer, plus a remote. The fixed chassis installs in a double hung window with the included EZ Mount kit. The trade-offs: it is not an inverter, GE gives no noise figure, and GE marks the model as no longer being manufactured, with a $408 clearance price.

The Lite is Windmill's lower-cost window unit, a 6,000 BTU model for small to medium rooms of 150 to 250 sq ft. At $249 on Windmill's store, it is the cheapest unit on this list. It keeps the pre-assembled install kit that sets Windmill apart, so it slides into place without building the side panels yourself, and it connects to the same Windmill app as the main line for temperature changes, schedules and usage tracking. Modes are cooling, fan and eco, with low, medium and high fan speeds, an auto-fade display and soft-touch buttons. It uses R32 refrigerant, draws 550 watts at 6.8 amps, and weighs 40.2 lbs at 16 by 12 by 13.6 inches, the lightest unit here. The compromises show in the specs: a CEER of 11.0, below the up to 15.0 Windmill quotes for its main AC line, no published noise figure and a ceiling of 250 sq ft.