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    Kapsul W5 Window Air Conditioner

    Meet The Kapsul W5

    • The world's slimmest window air conditioner at 7 inches tall, it installs in minutes by one person.
    • Control and schedule temperatures remotely via mobile app.
    • Half as quiet as traditional window units; just under 50dB.
    • For perfect control of your home climate, Kapsul directs air up for circulation throughout the room - no more cold or hot spots.
    • Kapsul adjusts to cool and dehumidify as reaches your desired temperature.

    Our Customer Policies

    • Free shipping and returns on all orders.
    • 30-day money back guarantee for any reason.
    • 5-year best in class warranty.

    What Our Customers Say

    I absolutely love my Kapsul!

    I absolutely love my Kapsul! It is so sleek and quiet, I’d love to replace all of my other units. My house is 100+ years old and the Kapsul looks much nicer than the bulky standard window air conditioners.

    Vivian L.

    Love it. Looks beautiful, works

    Love it. Looks beautiful, works great and is super quiet. Have it in a home office and you can’t tell it’s on. Love the app. Delighted overall!

    Chris M.

    I LOVE this air conditioner.

    I LOVE this air conditioner. It is so quiet and keeps our bedroom cool all day and night. I haven't turned it off since it was installed and it runs beautifully.

    Elaine R.

    How it Works

    Single knob operation icon

    Kapsul’s unique single knob operation is user friendly. Set to the desired temperature and the W5 automatically optimizes fan and compressor operation.

    Keep your home comfortable and quiet icon

    Kapsul optimizes temperature and humidity while running fans and compressors only as needed to keep your home comfortable and quiet.

    Set a schedule icon

    Set a schedule or control the W5 remotely via a mobile application. Functions include On/Off, temperature selection, and timed operation.

    Mixes with warm air icon

    Kapsul blows cold air upwards so that it mixes with warm air as it falls. This circulation removes warm spots from the room, which greatly improves comfort.

    Fan optimization technology icon

    At just under 50dB, the W5 is about half as quiet as traditional units and rarely runs at full speed due to Kapsul’s fan optimization technology.

    Easy to install icon

    Kapsul is the world’s easiest to install window air conditioner. The W5 can be installed safely, with an air-tight seal, within minutes by one person.

    Kapsul W5 Specs

    Kapsul’s patented shape is unique. At just 7” tall, no other window air conditioner preserves more of your view. And the W5 is twice as quiet as traditional window units while cooling and dehumidifying more precisely.


    Control Kapsul using a mobile application for iOS or Android.

    Size & Weight

    7” tall, 20” wide, 22” deep, 48 lbs with easy lift handles

    W5 side view diagram

    Fits Windows
    22” - 36” wide

    W5 front view diagram

    Detailed Specs


    Energy Usage
    120V AC & 11 EER
    .480 kW / hour

    RoHS Compliant

    5-Year Limited Warranty

    Operating Range
    Temperature: 32 ̊- 120 ̊F
    Humidity: 0% - 97%RH

    Light Display
    16 million color LED display
    Blue-light free night mode
    3” diameter light ring

    802.11b/g/n @ 2.4GHz

    On-board Sensors
    Ambient Light

    In The Box

    Kapsul window frame adapter, Kapsul W5, stainless steel screws, insulation, and manuals.