10 Best Slim Window Ac 2026 in the United States

The Amazon Basics 6000 BTU Window Air Conditioner is a solid choice for cooling small to medium rooms, up to about 250 square feet, like bedrooms or home offices. Its cooling capacity is sufficient for these spaces, providing a comfortable environment with 7 temperature settings and 2-speed fan options for customizable comfort. The unit operates quietly, with noise up to 56 dB, which is gentle enough not to disturb sleeping or working.

Its energy efficiency rating (SEER) of 12.1 is decent, helping to keep electricity use reasonable but not particularly outstanding. Installation is straightforward for windows between 23 and 36 inches wide, with expandable panels included, though you’ll need basic tools like a screwdriver. The washable filter is a nice touch for easy maintenance, helping to keep dust and allergens at bay.

At about 42 pounds and dimensions of roughly 18.5 x 13.4 x 15.7 inches, it’s a bit on the heavier side but still manageable for most users. The cooling and fan functions give flexibility, although it lacks more advanced features like smart controls or remote access, which some users might miss. This AC unit is well suited for those seeking an easy-to-use, effective cooling solution for smaller rooms without extra bells and whistles.

The Amazon Basics 5000 BTU Small Window Air Conditioner is designed for small rooms up to 150 square feet, making it a good fit for bedrooms, home offices, or cozy living spaces. Its cooling capacity is modest but sufficient for these smaller areas, providing reliable comfort without overkill. The unit is energy efficient, featuring a Seasonal Energy Efficiency Ratio (SEER) of 14, which helps keep electricity costs reasonable compared to less efficient models. Noise-wise, it operates quietly at around 56 decibels, so it won’t disturb your sleep or work, which is a nice plus for a bedroom AC.

In terms of size, the unit is fairly compact (about 16 x 13 x 12 inches) and weighs 35 pounds, which is manageable for a window air conditioner. It fits standard windows between 23 and 36 inches wide, with adjustable side panels to ensure a snug installation. Setting it up is relatively straightforward, though you’ll need basic tools like a screwdriver. Additional features enhance convenience: it has a washable pre-filter to trap dust and allergens, helping maintain air quality and making maintenance easy. The AC offers 7 temperature settings and 2 fan speeds, along with two-way air direction control, allowing you to customize airflow to your liking. It also includes a fan-only mode and dehumidifying function, adding versatility beyond simple cooling.

The cooling capacity restricts this unit to smaller rooms, so it’s not suitable if you need to cool larger spaces. Also, while the mechanical controls are intuitive, those expecting a digital display or remote control might find it lacking in modern conveniences. This unit represents a practical, budget-friendly choice for users needing effective cooling in a small space, valuing quiet operation and ease of maintenance over high power or advanced features.

The Midea MAW12V1QWT U-Shaped Window Air Conditioner stands out for its innovative design and energy savings. Its unique U-shape lets you keep your window partially open, allowing fresh air and light while the unit cools. Quiet operation is a big plus here; at just 32 dB, it is much quieter than typical window ACs, making it ideal for bedrooms or offices. With a strong 12,000 BTU cooling capacity, it can comfortably cool spaces up to about 550 square feet.

Energy efficiency is impressive too — this model uses advanced inverter technology and has earned ENERGY STAR certification, helping reduce electricity bills by over 35% compared to older units. Smart features add convenience, allowing you to control the AC remotely via an app or voice commands through Alexa or Google Assistant. Installation seems straightforward with the included quick-snap bracket, but the unit's size and weight (around 59 pounds) mean you might need some help setting it up, and it fits windows 22 to 36 inches wide and at least 13.75 inches tall.

While it uses the eco-friendlier R32 refrigerant and includes useful extras like a dust filter and dehumidifier function, the physical dimensions are a bit bulky for some slim-window setups. Also, it requires batteries for the remote, which is a small extra to keep in mind. This Midea model is a solid choice if you want a quiet, energy-saving AC with smart controls and can accommodate a slightly heavier unit that fits certain window sizes.