10 Best Small Window Unit 2025 in the United States

The Amazon Basics 5000 BTU Small Window Air Conditioner is a solid choice for cooling small spaces up to 150 square feet, such as bedrooms or home offices. Its 5000 BTU capacity is suitable for these areas, providing enough power to keep the room comfortably cool. With an Energy Efficiency Ratio (EER) reflected by a SEER of 14, it balances performance and energy use reasonably well, which can help keep electricity bills in check. Noise-wise, it operates quietly at about 56 decibels, making it a good option if you want to avoid distraction while sleeping or working. Installation is straightforward for most standard windows, thanks to adjustable side panels and a full mounting kit, though you might need a screwdriver as it’s not included. The unit’s size is compact enough to fit standard window dimensions without being bulky.

Additional handy features include a washable filter that helps capture dust and allergens, making maintenance easy and improving air quality. It also offers customizable comfort with 7 temperature settings, 2 fan speeds, and adjustable air direction, allowing you to tailor airflow to your preference. On the downside, the cooling capacity limits its use to small rooms only; it won’t be effective in larger spaces. Also, it lacks some advanced features like remote control or smart connectivity that more expensive models might offer.

Though installation is simple, it’s not tool-free, and some users might find the mechanical controls less modern compared to digital interfaces. This unit represents a practical, budget-friendly option for anyone needing efficient cooling in a small room, especially if straightforward use and easy upkeep are priorities.

The Midea 6,000 BTU Window Air Conditioner is a solid choice for cooling small rooms up to 250 square feet, such as bedrooms, studies, or offices. Its cooling capacity is just right for these spaces, providing quick relief on warm days without consuming too much power. The unit includes a 3-in-1 function, allowing you to cool, circulate air with a fan, or reduce humidity, which adds versatility beyond simple cooling. Operating at a noise level as low as 52 decibels on low mode, it keeps things fairly quiet, so it won’t disturb your work or sleep.

Energy efficiency is decent with a SEER of 12.1, though it lacks an Energy Star rating, so it might not be the most energy-saving option on the market. However, features like Eco mode and a programmable timer help manage electricity use better. Installation is straightforward for anyone comfortable with basic tools, as it fits standard window sizes and includes all necessary mounting hardware. Just keep in mind you’ll need a screwdriver and possibly pre-drilled holes for a secure fit.

The remote control and easy-to-read LED display make adjusting settings convenient, especially from across the room. The reusable air filter helps keep dust and pet hair out of the air, which is a nice bonus for allergy concerns. On the downside, it’s a bit heavier than some competitors at 38 pounds, which might make installation tricky if you’re doing it alone. Also, the warranty covers only one year, which is relatively short compared to other brands. This Midea unit suits anyone needing an affordable, multifunctional, and reasonably quiet window air conditioner for small spaces. It balances effective cooling and useful extras but may not be the best fit if you prioritize top-tier energy savings or long-term warranty support.

The Midea 12,000 BTU EasyCool Window Air Conditioner is designed to cool medium-sized rooms up to 550 square feet, making it a good fit for apartments, offices, or bedrooms. It offers three useful functions in one device: cooling, air circulation with a 3-speed fan, and a dehumidifier to reduce moisture. This versatility is great if you want more than just cooling. The unit is fairly energy efficient, featuring an Eco mode and a timer to help save on electricity costs. Its Energy Efficiency Ratio (EER) is decent for this size category, helping you keep running costs moderate. Noise-wise, it operates at around 55 dB, which is quieter than a typical household refrigerator, so it won’t be too disruptive in your living space. Installation is straightforward for anyone with basic DIY skills. It fits standard window frames sized 23" to 36" wide and 14" high, and comes with all necessary mounting brackets—though you'll need your own screwdriver. The unit is on the larger side in terms of physical dimensions and weight (about 75 pounds), so consider this if you plan to move it often.

Additional features like remote control and an LED display add convenience, especially for changing settings from across the room. The reusable filter helps keep dust and pet hair out of your air, which is a nice plus for allergy sufferers. Some users might find the unit a bit heavy to install alone, and while the noise level is low for an AC, it’s not silent. Also, the warranty covers just one year, which is fairly standard but shorter than some competitors offer. This Midea model delivers solid cooling and extra functions with good energy efficiency and easy operation, making it well suited for anyone looking to cool a small to medium room without much fuss.