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KoolSiln

12,000 BTU Portable Air Conditioner Cools Up to 550 Sq.Ft, Auto-Evaporation Low Noise Portable AC Unit with Remote Control Fits for Large Room, Office, Garage, White

  • Based on 36 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Tuesday, Sep 1
Order within 22 hours and 30 minutes
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Color: White


Size: 12000 BTU


Features

  • Faster Cooling Star 2026 Portable AC Up to 550 sq.ft12,000 BTU cooling with an enlarged 77 air outlet, using eco-friendly R32 refrigerant for faster, greener cooling. No more waiting hours to escape the heatcools rooms from 90 to 61F in just a short time (exhaust hose installation is required). Compact and energy-saving, it balances rapid cooling with quiet operation for year-round comfort
  • What You Need 360 Auto-Evaporation Tech converts 80% excess water into cool air while you sleep. No wet messes. Just set the 8-hour sleep timer and more time enjoying
  • A Good Night SleepDesigned for light sleepers, our noise-reduction technology keeps sound levels as low as 44dBquieter than a library conversation. Activate Sleep Mode to dim the display, reduce fan noise, and maintain your ideal temperature all night without disruptions
  • 3 IN 1 Versatile AC UnitEasily switch between cooling, fan, and dehumidifier modes to meet your need and save you the hassle of buying separate appliances
  • Auto Adjust for Perfect ComfortNo need to constantly adjust settings. The AC intelligently maintains your ideal temperature by automatically turning off when its cool enough and restarting when neededkeeping your space comfortable, quiet, and energy-efficient
  • Tool-Free Setup in 3 StepsInstall this portable air conditioner for rooms in minutes: Attach the exhaust hose, secure the adjustable window bracket, and plug it in. No drilling requiredideal for most vertical windows &horizontal windows (20.47"-67.32")

Description

Born from "Kool" (optimal cooling) and "Siln" (silent innovation), KoolSiln engineer premium mobile ACs that balance power, efficiency, and sleek design. KoolSiln Portable Air Conditioners are tested or inspectedas many as 600 times throughout themanufacturing process to maintain optimal effectiveness and safeness.

Brand: KoolSiln


Capacity: 74 pints


Cooling Power: 12000 british thermal units


Special Feature: Dehumidifier, Fast Cooling, Sleep Mode


Product Dimensions: 16.7"D x 15.7"W x 24.5"H


Color: White


Voltage: 115 volts


Noise Level: 45 db


Model Name: HAC9018


Item Weight: 66.6 pounds


Cooling Power: 12000 british thermal units


Additional Features: Dehumidifier, Fast Cooling, Sleep Mode


Color: White


Noise: 45 db


Installation Type: Window


Voltage: 115 volts


Wattage: 1143 watts


Item Dimensions D x W x H: 16.7"D x 15.7"W x 24.5"H


Item Weight: 66.6 pounds


Controller Type: Remote Control


Brand Name: KoolSiln


Model Name: HAC9018


Model Number: HAC9018


Included Components: Installation Kit


Manufacturer: Rnice


Warranty Description: 1 Year


Annual Energy Consumption: 731 kilowatt hours per year


Capacity: 74 pints


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Sep 1

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews

    • Reliable cooling
I didn't expect such a small unit to cool this well, but it does. My 450 sq.ft room goes from warm to comfortable in under 15 minutes. I was worried about electricity costs, since my old AC sent my bill through the roof, but this one has been surprisingly efficient. The combination of compact size, great cooling, and low energy use makes it totally worth the price. ... show more
Reviewed in the United States on January 28, 2026 by Xiuying jin
    • So cool
my wife loved versatile Design, no too much noise at all! So we could keep baby sleep. Very functional and keeps my room cool. Don’t leaks at all, this is an amazing unit.
Reviewed in the United States on June 18, 2025 by Will
    • Good quality
Color: White Size: 12000 BTU
Good quality
Reviewed in the United States on July 3, 2026 by D
    • Effective Cooling With Proper Setup
Took some time to seal the window kit perfectly and ensure the hose wasn't kinked. Result? Cools my living room perfectly! Performance depends heavily on correct installation and venting.
Reviewed in the United States on July 18, 2025 by leochen
    • Good product! Cools well.
Packaged nicely and arrived on time. Took less than 15 mins to read instructions and set it up. Took about 20s for the refrigeration to kick on so initially thought it wasn't going to blow very cold but once it kicked on, ice cold air！
Reviewed in the United States on July 12, 2025 by lionalex
    • A Miracle for Light Sleepers Like Me
As someone who's a very light sleeper, this feels like a miracle. The sleep mode is absolutely perfect, the display turns off completely, and the fan drops down to a soft, gentle hum. I can finally get a full night's sleep without waking up feeling too hot or too cold. I can't say for sure whether it actually runs below the exact decibel number listed since I don't have any professional equipment to measure it, but based on how quiet it sounds in real use, that claim definitely feels believable. ... show more
Reviewed in the United States on January 23, 2026 by Cqw
    • Simple ,easy and very convenient
This unit is straightforward and easy to use. I had it set up in just over ten minutes after it arrived, with no drilling or special tools needed. That also means I can roll it to whatever room I need it in, which makes it really convenient overall.
Reviewed in the United States on January 30, 2026 by bryce
    • Delivery
Color: White Size: 12000 BTU
The driver left the package on the sidewalk instead of on the porch He was still in his truck when I went out to receive the package but he did not get out and offer any help It is heavy and hard for me to move I am an 82 year old woman and should not have to move heavy objects
Reviewed in the United States on July 27, 2026 by Carol S.

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