10 Best Costco Air Conditioner of 2025

Tested and Reviewed: Top 10 Costco Air Conditioner deals with expert ratings from 8.1 to a perfect 10

May 2025 Edition

Editor's Choice

9.7

Save 12%

COSTWAY

COSTWAY Portable Air Conditioner, 10000 BTU AC Cooling for Room Spaces up to 350sq.ft, with Remote Control, 24H Timer & Window Venting Kit, with Sleep Mode, Suitable for Bedroom, Living Room, Black

12% Off

Editor's bottom line:

“This costco air conditioner is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

[Powerful Air Conditioner:]This 4-in-1 air conditioning machine features four modes, including ventilating, drying, air cooling and sleep mode. 2 fan speeds allows you to choose the most suitable level in accordance with your needs. Moreover, it adopts an R410A refrigerant, which is greener and has lower impact on environment than others.
[Smart Operation & Huge Coverage:]Operation panel and remote control both offer great convenience to operate. The remote control supports up to 16.5T away use. This evaporate cooler oscillates 140vertically and 50 horizontally, covering an area of 350 sq. ft. The temperature can be adjusted from 60.8to 89.6. High-density filtration helps realize effective elimination of dust for better living condition.
[Humanized Sleep Mode:]In this mode, the temperature will increase by 1.8/1 per hour to prevent getting a cold. The machine is equipped with 1-24 hours timer and produces low noise to protect your sleep and care for your health. It will stop work when the water tank is full. A drainage hole will help cleaning after using.
[Customized Details & Protective Features:]Built-in handle allows for easy transportation. Automatic defrost function and self-evaporating system will ensure smooth working. Safety child lock and overload protection effectively prevent your loved ones from getting hurt or causing danger. It has passed ETL and DOE test to prove its quality.
[Compact Size & Portable Design:]The portable air conditioner brings minimal intrusion by occupying little space. With four rolling casters, you can move it to anywhere. It is perfect for any house, office, small apartment and dorm. The package also comes with window kit, which is easy to install with the clear instructions.

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Picked by 195 people today

9.5

Save 11%

FLOWBREEZE

Windowless Portable Air Conditioners, 36’’ Evaporative Air Cooler w/Remote, 2.5L Water Tank & 4 Ice Packs, 12H Timer Auto-off, 70° Oscillating, Quiet Cooling Tower Fan For Bedroom Living Room Office

11% OffFree Shipping

Main Highlights

-- The air cooler integrates useful functions you want. It can blow cold air as a Fan & Air Conditioner & Air Cooler. Double cooling effect: If there is no water in the water tank, the fan will be an ordinary air cooler.
& - Compared with traditional air conditioners: No hoses on windows or walls and no installation required. Its only 65W, it can save a lot of electricity bills, no need to pay for installation and high maintenance costs.The bottom area is: 12.6*12.6 inch, 9.2 pounds, is the good choice for saving space. The Built-in handle allows you to easily move it to everywhere.
& ° 1-12 hours timer, which can be customized to set the working time of 1-12H for time freedom. In addition, the low-noise configuration allows you to sleep with the breeze at night without feeling noisy. 70° wide-angle range of oscillation, the cooling space can reach 300SQ.FT, and avoid direct blowing, which is conducive to covering every corner of your room with cold air in the maximum time, so you can use it in your bedroom, living room or office and quickly feel the presence of cold wind without any restrictions.
. & The water pump pumps up the water from the water tank and flows behind the water curtain. The blown wind carries water vapor, which is combined with ice packs and turn the "cool" function on, then cooling effect will be enhanced, and the wind will be warm and moist without drying out. It can work for nearly 10 hours with full water and don't worry if there is no water in the tank, it will keep blowing cold wind. No need to waste too much time and energy on water tank, just rinse the built-in fiber curtain with water!
& 3 wind speeds: low/middle/high, 3 speeds for you to adjust. 2 wind modes: Normal, Natural modes. You can choose the mode that suits you based on your preference and comfort level.
This air cooler has two methods of control: smart touch screen and remote control. Responsive touch control allows operation from the top without bending over. The remote control enables freedom of movement, allowing you to easily switch to any mode you want on the bed or sofa without getting up after a busy day, relieving fatigue throughout the day. Easy-to-understand icons make it easy for the elderly and children to use it.

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9.5

Midea

Midea 8,000 BTU U-Shaped Smart Inverter Air Conditioner – Cools up to 350 Sq. Ft., Ultra Quiet with Open Window Flexibility, Compatible with Alexa, 35% Energy Savings, Remote Control (Renewed)

Free Shipping

Main Highlights

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 : 710W, Rated Cooling Amps (AHAM) : 8.78.Airflow (CFM) Roomside (hi low) : 215/150. Refrigerant : R32
MORE THAN 35% ENERGY SAVINGS - With the advanced DC Inverter technology, Midea U achieves over 35% energy savings compared to other traditional units.
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
FLEXIBLE WINDOW OPENING - The U-shaped design allows your window to open, bringing fresh air into your home and maintaining more of your view when the unit is installed. When the window is closed, the Anti-Theft Mechanism locks the window for added safety
ROBUST INSTALLATION - Install the included quick-snap bracket, set the unit on the bracket, and secure the sidearms. Then you are all done and ready to enjoy. Available for single-hung or double-hung windows with width 22"-36", minimal height at 13.75"

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Best Value

9.2

Save 20%

Electactic

10000 BTU Portable Air Conditioner and for Room up 450 Sq. Ft, 4-IN-1 Quiet Portable Ac Unit with Dehumidifier Fan Function, Remote Control, Sleep Mode, 24H Timer

20% OffFree Shipping

Main Highlights

4-in-1 Portable Air ConditionersCooling & Fan & Dehumidifier &Sleep . Introducing the ultimate all-in-one solution for your indoor climate needs, our portable air conditioner seamlessly combines powerful cooling fan with efficient dehumidification.Cooling Area 450 sq.ft, enhances air quality and creates a healthier living space.
Quiet Operation, Quiet Enjoyment: Timer with 1-24 hours & low noise design allows the operation to produce only a slight sound, will not affect your rest or work, you can enjoy the quiet cool environment.
Simple Operation: LED panel control and remote control are two control methods for you to choose, you can set the temperature (62ºF and 86º F), time, mode, so that your life is more convenient, comfortable, personalized.
Portable Air Conditioners: The compact design of this Portable AC, the size is 27.09inch*13.39inch*11.81inch, the specially equipped side handle and universal wheel design, fully take into account the needs of the user, whether from the storage room to the bedroom, or from the living room to the balcony, can move smoothly.
Washable Filter: The filter design is easy to disassemble and clean, just a few simple steps, you can easily complete the cleaning work, without frequent replacement, greatly extending the service life, while saving the cost of long-term use. Regular cleaning of the filter can also keep the air conditioner running efficiently.

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9.0

COSTWAY

COSTWAY Portable Air Conditioner, 8000 BTU Portable AC Unit with Fan & Dehumidifier, Smart Sleep Mode, 24H Timer, Auto Swing & Window Installation Kit, Cools up to 250 Sq.Ft (8000 BTU)

Main Highlights

Year-Round Comfort Options:Users can choose from auto, cool, dehumidify, and fan modes according to personal needs. And this portable AC will bring you a peaceful sleep at night with smart sleep mode (auto maintain an optimal set temp in low speed) and 1-24H timer.
Efficient & Stable Performance:With this 8000 BTU portable AC unit, you will experience efficient cooling in rooms up to 250 sq.ft, suitable for living room, bedroom and kitchen. The wide oscillation with 120° auto and 120° manual swing promotes air circulation and helps cool every corner in your space.
Customized Comfort at Your Fingertips:This floor air conditioner with dual control allows you to adjust settings easily using the LED touch panel or the included remote control. The unique color-changing atmosphere light makes it an eye-catching addition to any space.
Easy to Use, Move & Store:Equipped with 2 built-in handles and 4 universal wheels, this portable AC unit offers hassle-free movement around your space. And the drainage is easy by connecting the drain hose to the bottom drainage hole (drain hose included). The removable and washable filters simplify regular maintenance.
Easy & Flexible Installation:Designed with user-friendly features, this portable AC unit is easy and quick to set up with the included window kit and detailed instructions. Compatible window types: double/single-hung windows and sliding/ slash windows.

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8.8

Save 16%

COSTWAY

COSTWAY 10000 BTU Portable Air Conditioner, with Fan & Dehumidifier Mode, Quiet AC Unit with Sleep Mode, 2 Speeds, 24H Timer, LED Display, Remote Control, Cool Rooms up to 350 Sq.Ft for Bedroom, Dorms

16% Off

Main Highlights

Perfect Cooling Solution & 24H Timer:Featuring a powerful cooling capacity of 10,000 BTU and 90° manual vertical oscillation, this portable AC can cool the whole room quickly and evenly. Besides, the auto on/off 1-24h timer is convenient to use and saves energy.
3-in-1 Portable Air Conditioner:This portable air conditioner has 3 modes to choose from - cooling, dehumidifying and fan. Plus, you can set the wind speed to high or low based on your needs.
Safe & Quiet Summer Partner:Designed with sleep mode and low noise operation(55 dB), this portable AC won't disturb your sleep. What's more, it has a water full auto shut-off function and ETL & DOE certification to offer a secure using experience.
Easy Operation & Movement:With the LED touch panel & handy remote control, you can effortlessly set the mode, temperature, speed, timer, power, up/down, /switch, etc. Plus, 2 built-in handles and 4 universal wheels allow you to move the AC anywhere easily.
Humanized Design & Quick Installation:The removable & washable filter is easy to clean. What's more, there are 2 ways to drain: continuous drainage/manual drainage. In addition, equipped with complete accessories and detailed instruction, this portable air conditioner is easy to install.

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8.6

COSTWAY

COSTWAY 10000 BTU Window Air Conditioner, Over the Sill AC up to 400 Sq.Ft w/Cool/Dry/Fan/Auto/Sleep/Energy Saver Modes, Full Widow View, Ultra Quiet Operation (10000BTU)

Main Highlights

1 AC Unit, 6 Modes: This window air conditioner converts freely between 6 modes, including the cool, dry, fan, auto, sleep and energy saver mode. The dehumidification is 35 pints a day. And the fan speed can be selected among high, low and quiet.
Efficient & Exact Cooling: With 10000 BTU cooling capacity, this window AC unit boasts a great cooling ability, covering an area up to 250 square feet. Whats more, you are able to activate My Temp mode that enables the window AC to cool the area depending on the location and set temperature of the remote control.
2 Ways of Controlling: On the one hand, you can operate this over the sill AC unit through the touchable control panel with LED display. On the other hand, the handy remote allows you to control the saddle air conditioner from a distance of 16.5 ft.
Humanized Designs: Thanks to the 42 dB ultra-quiet design and the 24-hour timer, you can enjoy a sound and undisturbed sleep all night. Moreover, the sweep directions can be altered by adjusting the blades. The detachable and washable filter as well as the water drainage hole brings convenience.
Hassle Free Installation: The window AC unit is equipped with a clear instruction and complete accessories for easy installation. More importantly, the unique design avoids blocking the view out the window. Note: The suitable window width range is 24 to 48. And the max depth of the sill is 11.

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8.3

HUMHOLD

Humhold Portable Air Conditioners 14000Btu with Remote Control, 3-in-1 Free Stand Smart Cooling AC Unit with Dehumidifier, Fan, Cools Room up to 700 sq.ft, Auto Swing,24H Timer, Windows Kit Included

Free Shipping

Main Highlights

14000 BTU Powerful Cooling EfficientHumhold Powerful Portable AC unit owns a cooling capacity of 14,000 BTU(ASHRAE) / 10,000 BTU(SACC), has an most energy efficient compressor that can supply 61F-86F cool air to 550-700 square feet of large space in your living room, bedroom, apartment, home kitchen,and office, stable and fast way to make you feel cool all the time in the hot seasons.
3-in-1 Cooling/Dehumidify/Fan Mode The smart portable air conditioner offers the convenience of 4 functions, including Cooling, 3-Speed Fan, and Dehumidify, which meets your needs in hot seasons. You can freely adjust the temperature from 61F to 86F in cooling mode. The Dehumidifier capacity of 95 Pints/day can effectively reduce the humidity in small room, and as a Fan to circulate indoor air all the times, removing excess moisture and releasing fresh air for a healthy and comfortable environment.
Front LED Display Touch & Remote Control Our portable air conditioners is equipped with an easy-to-read Front LED Display and Touch Panelcombined with full-function remote control which has LED display with backlight, and up to 23 feets control distance, you can easily set the temperature and wind speed you want while sitting on the sofa or lying on bed, no need to get close or stand up, maximize the convenience of mobile air conditioners.
No Need To DrainWith Built-in water self-evaporation system, there is no need to drain water for daily use, the water will automatically evaporate through air hose. If it is placed in humid environment such as basement, laundry room, it needs to drain every 8 hours, or the unit will stop for the water tank inside is full, you can unplug the drain plugs on the back and connect water pipe to drain (package included), then start the machine again. The filters are designed to easy disassemble without any tools and can be washed directly by water flushing.
Smart & Sleep Mode with 24H Timer for Enery Saving Built-in internal temp-sensor, Smart Mode enables the inverter ac unit run in Cool or Fan mode based on the room temperature, Keep the room at the most comfortable temperature 73F-77F. Sleep Mode will maintain an optimal temperature in low fan speed, and provide you less than 48dB quiet bedroom. You can also preset to stop the ac unit after 0.5-24 hours, all these funtional modes are money-saving and let you have a suitable temperature for relaxation and good sleep in the wonderful summer.
Enhanced Wind Speed & Auto-Swing Built-in more powerful and upgraded fan systemwith 15-75° Wide-angle airflow and auto-swing function cools down your room in all directions, fan speed can be freely adjusted and the air is flowing evenly in the whole roomwhich can distribute the cold air evenly to your room at the fastest speed, so that you can feel comfortable temperature anywhere at home.
Easy to Move & Install This floor free stand up air conditoning machine comes with 4pcs 360° heavy-duty wheels and hidden handles on both sides so you can easily move the machine to any room. Windows sealing kit and exhaust hose are included in the portable ac package to ensure simple installation, and fit most vertical window and horizontal sliding windows. Easy 3 steps to install: First attach the sealing boards to the window, Step 2 insert adapters of the exhaust hose to air conditioner and windows board, Step 3 plug in and enjoy the cooling air.
F or C Temp Display Easy SwitchWhen the appliance is running, hold on " - " / " + " button on the touch control panel together 3 seconds by the same time, or press "C/F" button on the remote, then you can easy switch LED Display of Temperature between Fahrenheit F and Celsius C. All your settings will be saved as long as the remote control has power; Remote control settings also take priority over touch panel settings.

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8.1

COSTWAY

COSTWAY 15000 BTU Portable Air Conditioner, with Heat, Auto Swing 4-in-1 AC Unit for Rooms up to 800 Sq.Ft, with Built-in Dehumidifier, 24H Timer, Remote Control/APP Control & Window Kit

Main Highlights

[Powerful Cooling & Efficient Heating:] This portable air conditioner boasts a powerful cooling capacity of 15000 BTU and a heating capacity of 11500 BTU, making it ideal for large rooms up to 800 sq.ft. The unit's 74° auto swing feature effectively circulates air throughout the room, ensuring consistent and fast cooling and heating.
[4-in-1 Portable Air Conditioner:] Equipped with a 4-in-1 design, this air conditioner doubles as a fan, dehumidifier, portable AC unit, and heater, providing you with year-round comfort. You can select from three fan speeds (high, medium, and low) and adjust the temperature between 61 and 88 for personalized comfort.
[Convenient Control & Maintenance:] Controlling this unit is easy thanks to the LED touch control panel, handy remote control (with an effective range of 26 ft), and Smart Life app compatibility. Additionally, the removable and washable filter makes maintenance a breeze.
[Considerate & Safe Design:]For your convenience and safety, this AC unit features a sleep mode with a low fan speed and noise level (52dB), and a 1-24 hour timer that can be set to auto turn on/off the unit. There are two drainage options (manual or continuous), and the overflow protection automatically shuts off the unit when the water tank is full.
[Easy Installation & Mobility:]The portable AC unit comes with a window kit and accessories, making installation a breeze. It is compatible with vertical or horizontal sliding windows (window size range: 25.5"-47"), and the universal wheels and portable handles make it easy to move around. When not in use, the power cord management feature allows for easy storage.

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8.1

Whirlpool

Whirlpool 24,000 BTU Window Mounted Inverter Air Conditioner with Quiet, 230V, AC for Large Rooms up to 1500 Square Feet with Remote, Window AC Unit for Apartment, Living Room, Bedroom

Free Shipping

Main Highlights

Inverter Technology: Eliminates wasted operation in the air conditioner by controlling the motor speed to exactly the amount of power that is needed to keep the room at the desired temperature
3-in-1 Cooling: This Energy Star rated air conditioner has 24,000 BTUs of cooling power, has 3 fan speeds, and dehumidifies the air up to 3.1 pints per hour in rooms up to 1500 square feet
Mute Mode: To enjoy quieter cooling, use the mute function to lower the fan speed as well as the noise down to 43 dB so you can nap or watch television with minimal disruption
Convenience Features: Utilize Eco, sleep mode, or the 24 hour programmable timer to customize your comfort to exactly the level of cooling or air flow you need at any time
Washable Filter: A clean filter alert conveniently notifies you to clean the unit's washable filter to ensure it keeps running efficiently

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Our Best Overall Choice

Best Choice

9.7

COSTWAY

COSTWAY Portable Air Conditioner, 10000 BTU AC Cooling for Room Spaces up to 350sq.ft, with Remote Control, 24H Timer & Window Venting Kit, with Sleep Mode, Suitable for Bedroom, Living Room, Black

12% Off

Editor's bottom line:

“This is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

[Powerful Air Conditioner:]This 4-in-1 air conditioning machine features four modes, including ventilating, drying, air cooling and sleep mode. 2 fan speeds allows you to choose the most suitable level in accordance with your needs. Moreover, it adopts an R410A refrigerant, which is greener and has lower impact on environment than others.
[Smart Operation & Huge Coverage:]Operation panel and remote control both offer great convenience to operate. The remote control supports up to 16.5T away use. This evaporate cooler oscillates 140vertically and 50 horizontally, covering an area of 350 sq. ft. The temperature can be adjusted from 60.8to 89.6. High-density filtration helps realize effective elimination of dust for better living condition.
[Humanized Sleep Mode:]In this mode, the temperature will increase by 1.8/1 per hour to prevent getting a cold. The machine is equipped with 1-24 hours timer and produces low noise to protect your sleep and care for your health. It will stop work when the water tank is full. A drainage hole will help cleaning after using.
[Customized Details & Protective Features:]Built-in handle allows for easy transportation. Automatic defrost function and self-evaporating system will ensure smooth working. Safety child lock and overload protection effectively prevent your loved ones from getting hurt or causing danger. It has passed ETL and DOE test to prove its quality.
[Compact Size & Portable Design:]The portable air conditioner brings minimal intrusion by occupying little space. With four rolling casters, you can move it to anywhere. It is perfect for any house, office, small apartment and dorm. The package also comes with window kit, which is easy to install with the clear instructions.

Show Price

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