Best 18 Inch Window Air Conditioners in 2026

Effortless Temperature Control: Our air conditioners maintain the preset room temperature, so you will remain comfortable at all times.Controller type:Button Control.Air Flow efficiency:136 CFM

Easy-to-Clean Washable Filter: Capture dust from the air and keep your dehumidifier working efficiently with our easy-to-clean washable filter

SpaceWise Adjustable Design Optional Side Panels: With the Adjustable Side Panels, the side panels will extend to best fit your window

ULTRA QUIET - The U-shape design of Midea U Smart Inverter AC uses your window to block noise outside. The highly-efficient inverter system warrants ultra-low noise and vibration, 9x quieter than traditional units with operation as low as 32 dBA.Control Type : Electronic. Clean Filter Indicator Light : Yes. Rated Cooling Amps (AHAM) : 12.17.

MORE THAN 35% ENERGY SAVINGS - With the advanced DC Inverter technology, Midea U achieves over 35% energy savings compared to other traditional units. It is the first window AC to obtain the ENERGY STAR Most Efficient Certification

SMART CONTROL - Midea U Smart Inverter AC is Wi-Fi enabled and can be controlled from anywhere using the MSmartHome app on iOS or Android. You can also use voice commands throughout your house, office, or apartment using Alexa or Google Assistant devices

LOW NOISE PERFORMANCE: Operates at sound levels as low as 52dB (in low mode) eliminating unnecessary noise.

MULTIPLE FAN SPEEDS: 3 cooling and fan speeds allow you to customize your cooling.

MAXIMUM USABILITY: Easy to use electronic controls with remote

10,000 BTU compact air conditioner for window-mounted installation uses standard 115V electrical outlet

Quickly cools a room up to 450 square feet. with dehumidification up to 3 pints per hour

Low power start-up conserves energy and saves you money

ENERGY STAR Certified: Use less energy than standard air conditioners reducing your energy usage, and ultimately lowering your utility bills.Controller type:Remote Control.Air Flow efficiency:150 CFM

SpaceWise Adjustable Design Optional Side Panels: With the Adjustable Side Panels, the side panels will extend to best fit your window

Power Cord: Comes with an extra long three-prong cord — makes extension cords unnecessary

GE 5000 BTU MECHANICAL WINDOW AIR CONDITIONER - Designed to efficiently cool rooms up to 150 sq ft; easy install kit included so you can start cooling right away

BEST FOR SMALL ROOMS: This AC unit is the right size for delivering 5000 BTU cooling capacity to smaller areas like bedrooms, studio apartments, guest rooms, and home offices

LOW-NOISE OPERATION - Keep the cool air flowing with minimal disruption; ideal for nighttime use in bedrooms

Multi-Speed Fan: Features three different fan speeds, for more cooling flexibility

Programmable 24-Hour On/Off Timer: Customize times to fit your schedule for immediate comfort when you get home. The built in timer allows you to preset the unit to turn on and off in half hour increments

Effortless Temperature Control: Our air conditioners maintain the preset room temperature, so you will remain comfortable at all times

Smart Control Air Conditioner – This WiFi enabled 6,000 BTU window air conditioner allows you to conveniently control cooling. It’s easy! Just press the SMART button to pair it with your mobile phone and start taking control via the hOmelabs app.It works with Alexa and Google Assistant, too! With dimensions of L 18.54 × D 15.55 × H 13.40 in, this 500 W AC unit can cool any room or space up to 250 sq ft.

Energy Star Efficiency - Higher energy efficiency offers more value than non-Energy Star units, so you can’t go wrong with this Energy Star certified air conditioner. This AC is also CEC, DOE, and CSA certified

Multifunctional Window AC – Whether it’s efficiently cooling a room through the COOL mode, reducing humidity for your comfort through the DRY mode, or getting rid of stale air through the FAN mode, this unit has it all and more! Easily create the perfect environment and take advantage of other features such as the 24 hr timer, Eco, Sleep, and Follow Me.

Powerful Cooling: The 5,000 BTU window mounted air conditioner will provide powerful cooling for any small sized room while offering dehumidification up to 1.3 pints per hour. Ideal for bedrooms, bathrooms, dorm rooms, sheds, garages and more.

Smart Remote Control: With a thermostat built into the remote control, it's able to sense the temperature of the room and adjust as needed. The 'Follow Me' remote makes it easier to control the unit from anywhere in the room and its integrated thermostat signals the AC to cool the space based on where you are.

Washable Filter: The easy clean washable and reusable tilt-out mesh filter will provide durability for your unit with hassle free maintenance. The check filter indicator light will alert you when it is time to clean.

Energy efficient air conditioning unit cools rooms up to 150 square feet with standard 9 foot ceilings

Ideal for small spaces such as dorm rooms and RVs

Features include: 7 temperature settings, dual cooling and fan settings as well as adjustable air direction

QUICK COOLING: Give your hot room the cold shoulder. TOSOT 8,000 BTU Window Air conditioners are best for spaces up to 350 sq. ft. If your space has high ceiling, an open floor plan, or a lot of traffic, you may want to consider sizing up.

MODERN DESIGN: This ain't your grannie's Window AC. Gone are the eyesores of yesterday, with their ugly metal grilles messing up the flow of your interior decorating skills. Bring the art gallery to your home by installing this sleek, minimalistic air conditioner in your living room window.

1 PRODUCT, 3 USES: At TOSOT, we want our products to solve as many of your problems as possible. That's why we're giving you three products for the price of one! This is not only a Window Air Conditioner, but also comes with modes for fan-only and for dehumidifying.

3 IN 1 COMFORT - The Midea EasyCool Window Air Conditioner unit has three modes to help your house, apartment, office, or room be as comfortable as possible. It can cool a space up to 250 sq. ft. quickly, circulate air with its 3-speed fan, or reduce humidity utilizing the dehumidifier mode.Controller type:Remote Control.Air Flow efficiency:168.82 CFM

ENERGY EFFICIENT - The EasyCool window air conditioner is Energy Star certified to help save you money throughout the year. There are also multiple custom settings to help you be even more energy-efficient like Eco mode and an EasyTimer feature to program a schedule that fits your needs.

QUIET & EASY TO USE - This window AC unit is quieter than a household refrigerator. The intuitive LED display and remote control (batteries included) allow easy setting of time, temperature, and mode from across the room. The removable and reusable air filter protects your family and living space from dust and pet hairs.

MAXIMUM COMFORT FOR SMALL ROOMS: Three fan speeds and four cooling modes provide total flexibility with optimal home comfort and air conditioner efficiency; or set to Eco Mode which automatically turns off the fan and compressor, saving you money on utilities.

ULTRA QUIET - This quiet air conditioner reaches sounds as low as 42 dB, providing maximum comfort and minimum noise; the ultra quiet operation keeps the air flowing with minimal disruption

BEST FOR ROOMS UP TO 250 SQ FT: This AC unit is the right size for delivering quiet, 6200 BTU cooling capacity to small areas like bedrooms, studio apartments, guest rooms, and home offices; Energy Star-certified for lower energy use and utility bills

Cool your room anywhere, anytime from your smart device with the Frigidaire app. At your convenience remotely turn the unit on or off, change temperatures, control modes, create custom schedules, and adapt fan speeds to best meet your comfort..air flow efficiency : 300 cubic_feet_per_minute_per_watt.Control Type : Electronic

Energy Star: Uses less energy than standard air conditioners reducing your energy usage and ultimately lowering your utility bills.

Washable Filter: Trap particulates from the air and keep your air conditioner working efficiently with our easy-to-clean washable filter.

3 IN 1 COMFORT - The Midea EasyCool Window Air Conditioner unit has three modes to help your house, apartment, office, or room be as comfortable as possible. It can cool a space up to 450 sq. ft. quickly, circulate air with its 3-speed fan, or reduce humidity utilizing the dehumidifier mode.

ENERGY EFFICIENT - The EasyCool window air conditioner is Energy Star certified to help save you money throughout the year. There are also multiple custom settings to help you be even more energy-efficient like Eco mode and an EasyTimer feature to program a schedule that fits your needs.

QUIET & EASY TO USE - This window AC unit is quieter than a household refrigerator. The intuitive LED display and remote control (batteries included) allow easy setting of time, temperature, and mode from across the room. The removable and reusable air filter protects your family and living space from dust and pet hairs.

3 IN 1 COMFORT - The Midea EasyCool Window Air Conditioner unit has three modes to help your house, apartment, office, or room be as comfortable as possible. It can cool a space up to 350 sq. ft. quickly, circulate air with its 3-speed fan, or reduce humidity utilizing the dehumidifier mode.Controller type:Remote Control.Air Flow efficiency:196.47 CFM.core material : Copper

ENERGY EFFICIENT - The EasyCool window air conditioner is Energy Star certified to help save you money throughout the year. There are also multiple custom settings to help you be even more energy-efficient like Eco mode and an EasyTimer feature to program a schedule that fits your needs.

QUIET & EASY TO USE - This window AC unit is quieter than a household refrigerator. The intuitive LED display and remote control (batteries included) allow easy setting of time, temperature, and mode from across the room. The removable and reusable air filter protects your family and living space from dust and pet hairs.

ULTRA QUIET - The U-shape design of Midea U Smart Inverter AC uses your window to block noise outside. The highly-efficient inverter system warrants ultra-low noise and vibration, 9x quieter than traditional units with operation as low as 32 dBA.Cooling Watts : 890W. Rated Cooling Amps (AHAM) : 9.97

MORE THAN 35% ENERGY SAVINGS - With the advanced DC Inverter technology, Midea U achieves over 35% energy savings compared to other traditional units. It is the first window AC to obtain the ENERGY STAR Most Efficient Certification

SMART CONTROL - Midea U Smart Inverter AC is Wi-Fi enabled and can be controlled from anywhere using the MSmartHome app on iOS or Android. You can also use voice commands throughout your house, office, or apartment using Alexa or Google Assistant devices