8 Best Ac Unit That Doesnt Need A Window 2026 in the United States

The BLACK+DECKER Portable Air Conditioner (14,000 BTU cooling) is a solid choice for those seeking a portable cooling solution without the need for a traditional window AC unit. It can cool rooms up to 700 square feet, suitable for bedrooms or living rooms. Its 14,000 BTU cooling capacity is quite powerful, and it also offers heating (10,000 BTU), which adds year-round usability. This unit includes a dehumidifier and fan mode, making it versatile beyond just cooling.

While it’s not Energy Star rated, it has a moderate energy efficiency ratio (EER around 6.2), meaning it won't be the cheapest on your electricity bill but remains reasonable for its power. Noise level is about 52 decibels, roughly the sound of a normal conversation, which some might find noticeable but not disruptive. Portability-wise, it weighs 35 pounds and measures about 27” wide, so it’s portable but a bit bulky to move frequently. Installation is straightforward with the included kit designed for window venting, although this product requires a window for venting the hot air out—so it isn’t fully windowless but avoids permanent window unit installation.

Control options are strong: you get a full remote control with a handy “Follow Me” feature that uses the remote as a thermostat for better temperature accuracy. It also supports Wi-Fi and voice commands through Alexa and Google Assistant, which is convenient if you like smart home features. This BLACK+DECKER model is well suited for users who need both cooling and heating in medium-sized rooms and do not mind the noise level or moderate energy use. Its size and venting requirements make it less ideal for those seeking a lightweight, fully window-free unit for frequent room-to-room movement.

The LG 11,800 BTU Through the Wall Air Conditioner is designed for those who want cooling without using a traditional window unit. Instead, it installs through a wall, which can be great for apartments or rooms without suitable windows. It cools spaces up to about 530 square feet, which is ideal for bedrooms or living rooms. The unit uses a modern and energy-efficient refrigerant (R-32) with an Energy Efficiency Ratio (EER) of 10.6, meaning it can help keep electricity bills reasonable compared to some older models.

With three different cooling and fan speeds, plus pre-set modes like Energy Saver and Dry (for dehumidifying), it offers versatile climate control. The included remote control makes adjusting settings convenient. Installation requires a wall cutout of specific dimensions, and the product comes with a trim kit and grille to complete the setup neatly.

The noise level is around 60 decibels, which is moderately loud—comparable to a normal conversation—so it might be noticeable in quiet environments. Also, at 76 pounds, it’s not very portable, and installing it requires a permanent wall opening, making it less flexible than window units. It does not have an inverter compressor, which means it won’t adjust power usage as smoothly as some newer models, potentially affecting energy savings. This LG unit is a solid choice if you need a through-the-wall air conditioner with decent cooling power and energy efficiency, especially when window installation isn't possible. However, be prepared for a moderate noise level and a fixed installation that isn’t easily moved.

The SereneLife Portable Air Conditioner is a versatile 3-in-1 unit offering cooling, dehumidifying, and fan modes, making it suitable for rooms up to about 215 square feet. It delivers 8,000 BTU of cooling power, which is decent for small to medium-sized spaces, but may fall short for larger rooms. The unit includes a built-in dehumidifier that helps reduce moisture and allergens, adding extra comfort beyond simple cooling. Portability is a key advantage here — it’s lightweight with rolling wheels, so moving it between rooms is easy. It comes with a remote control and digital panel, allowing you to adjust temperature, fan speed, and other settings conveniently.

Noise levels are moderate at around 55 decibels, which is noticeable but generally not too disruptive for most users. However, its energy efficiency is on the lower side with a 2-star rating and a Seasonal Energy Efficiency Ratio (SEER) of 9.8, meaning it could use more electricity compared to higher-rated models. The installation requires a window exhaust kit, so while it doesn't need a traditional window AC installation, it still needs a window or opening to vent hot air outside. This could limit its placement options if you lack a suitable window.

This unit is well suited for someone needing a portable AC with added dehumidifying features in smaller areas. It is user-friendly and convenient but not the most energy-efficient choice, and the exhaust vent requirement means it isn't fully independent of a window or vent opening.