best energy efficient air conditioner

Essential cooling performance for rooms up to 150 sq. ft.
Compact design with installation kit for quicker setup
Smart control with app, remote, or buttons - your choice
5,000 BTU window AC for small rooms: Cools spaces up to 150 sq. ft., making it a dependable choice for bedrooms, dorms, home offices, and other compact areas.
Smooth-running AC for everyday comfort: Runs steadily in the background to help maintain a more comfortable indoor environment while you rest, work, or relax.
Smart app and voice control: Adjust the temperature from anywhere using the top-rated Windmill Air app, or control it hands-free with Alexa or Google Assistant
Dimensions (Overall): 13.2 Inches (H) x 16.4 Inches (W) x 12.2 Inches (D)
Weight: 37.5 Pounds
Features: Controlled by Smartphone App, Voice Control
Assembly Details: Adult Assembly Required, Tools Provided
Cable/Cord Length: 6.9 Feet
Includes: Remote, Window Extenders

$459.99

reg $1,149.99

Sale

Costway 15000 BTU Portable Air Conditioner with Remote APP Control Cool Fan Heat Dehum

Costway

4.7 out of 5 stars

105

Sold & shipped by Costway

a Target Plus™ partner

Rating details & item highlights

ease of use
5 out of 5
quality
5 out of 5
value
5 out of 5

Powerful Cooling & Efficient Heating: Featuring 15000 BTU cooling capacity and 11500 BTU heating capacity, this portable air conditioner provides steady and fast cooling and heating, which is suitable for large rooms up to 800 sq.ft. The 74° auto swing (from up to down) promotes the air ventilation in the whole room.
4-in-1 Portable Air Conditioner: With 4-in-1 Design, this unit combines a fan, a humidifier, a portable AC unit and a heater in 1, which provides you with all-year round comfort. There are 3 fan speeds for you to choose (high, middle and low), and the adjustable temperature range is 61℉~88℉.
Convenient Control & Maintenance: This portable AC unit can be controlled by LED touch control panel, handy remote control (effective control distance within 26 ft) and APP (compatible with Smart Life), which makes your life much easier. For regular cleaning, the filter is removable and washable.
Considerate & Safe Design: Under the sleep mode, this AC unit works under low fan speed with a low noise level (≦52dB). You can also set the 1-24H timer before sleeping to auto turn on/off the unit. This AC unit is provided with 2 drainage ways (manual/continuous drainage), and the overflow protection auto shuts off the unit when the water tank is full.
Easy Installation & Mobility: Coming with window kit and accessories, this portable AC is easy to install to windows and fits vertical/horizontal sliding windows (applicable window size range: 25.5''-47''/65-120 cm). The universal wheels and portable handles allow for effortless movement, and the power cord management is easy to store when not in use.
Dimensions (Overall): 30.5 inches (H) x 14.5 inches (W) x 17.5 inches (D)
Weight: 73 pounds
Assembly Details: No Assembly Required
Electronics Condition: New
Cable/Cord Length: 5.5 feet
Industry or Government Certifications: ETL Listed

$229.99 - $329.99

reg $328.56 - $471.41

Sale

10,000 BTU Portable Air Conditioner, 4 Modes, Fast Cooling, Self-Evaporation, Remote Control, Timer, for Bedroom/Dorm/Indoor Use, White

R.W.FLAMENew at

4.8 out of 5 stars

262

Sold & shipped by R W Flame

a Target Plus™ partner

Rating details & item highlights

ease of use
4 out of 5
quality
3.7 out of 5

This powerful 10000 BTU portable air conditioner delivers rapid and efficient cooling for rooms up to 450 square feet with a customizable temperature range of 61°F to 90°F.
The versatile 4-in-1 design combines high-powered cooling, a dehumidifier capable of removing 50 pints per day, a two-speed fan, and a quiet sleep mode for year-round comfort.
An intuitive top-mounted LED display and a long-range remote control allow you to easily monitor settings and manage the 24-hour smart timer from anywhere in the room.
The advanced self-evaporating system recycles condensed water to minimize the need for manual drainage while featuring an automatic shut-off when the water tank is full.
Engineered for peaceful living, this unit operates at a quiet 53 decibels and features built-in side handles and easy-glide wheels for effortless movement between rooms.
Dimensions (Overall): 27.17 inches (H) x 18.81 inches (W) x 11.02 inches (D)
Weight: 44.64 pounds
Assembly Details: Adult Assembly Required, Tools Not Provided
Cable/Cord Length: 2.13 feet
Cooling Output: 10000 BTU
Room Size Range: 300-500 sq. ft.

$299.00 - $369.99

Select items on sale

Windmill Window Air Conditioner Quiet and Smart App/Wi-Fi Remote Control

Windmill Air

4.8 out of 5 stars

1675

Rating details & item highlights

ease of use
3.7 out of 5

#1 Easy-to-install: The install kit is already pre-assembled and ready-to-go in the box, making setup a breeze
Quiet: Runs smoothly and gently in the background, starting at 49 dBs
Powerful cooling: Efficiently cools spaces up to 250 sq ft
Airflow like central air: Air blows up and out into your room at a 45° angle for better cooling
Better sleep: LED display fades after 60 seconds, eliminating unnecessary blue light in your home
Smart: Turn your AC on before you get home with top-rated Windmill Air app for Apple and Android
Dimensions (Overall): 12.6 Inches (H) x 18 Inches (W) x 16.4 Inches (D)
Weight: 49 Pounds
Features: Controlled by Smartphone App
Assembly Details: Adult Assembly Required, Some Tools Provided
Cable/Cord Length: 6 Feet
Includes: Remote