10 Best Air Conditioners 2026 in the United States

The Hisense 8,000 BTU portable air conditioner is a solid choice for cooling rooms up to about 350 square feet, making it suitable for bedrooms, living rooms, or small offices. Its dual-hose design helps cool more efficiently and maintain steady room temperatures compared to single-hose units. Equipped with inverter technology, this model is more energy-efficient, potentially reducing electricity costs by up to 40%. It offers three main operation modes—cooling, dehumidifying, and fan—adding flexibility for different weather conditions.

Noise levels are relatively low at 42 decibels, which is about the sound of a quiet conversation, so it should be comfortable for nighttime use. The unit also supports Wi-Fi connectivity, allowing control via the ConnectLife app, and it works with voice assistants like Google and Alexa, which is convenient for smart home setups. While it doesn’t have an official energy star rating, the inverter tech still provides decent efficiency.

The air conditioner is relatively heavy for a portable model, weighing 65 pounds, which might make moving it around a bit challenging. Its window kit fits a variety of window sizes, but installation might require some effort. The 90-day limited warranty is on the shorter side, so that’s worth considering. This Hisense unit combines good cooling power, energy-saving features, and smart controls in a portable package that’s fairly quiet—making it ideal if you want a versatile and efficient cooler for medium-sized rooms but don’t need a permanent installation.

The Midea 12,000 BTU Inverter Window Air Conditioner is a solid choice for cooling and heating rooms up to about 550 square feet, such as bedrooms or living rooms. Its inverter technology helps it cool quickly and quietly, operating at around 45 decibels, which is gentle enough not to disturb conversations or TV watching. This unit also saves energy efficiently, boasting an Energy Star rating and a Seasonal Energy Efficiency Ratio (SEER) of 13.3, which means it uses less electricity compared to many standard window ACs. One of its standout features is the built-in heat pump, letting you use it for supplemental heat in colder months—although it won't work for heating when outdoor temperatures drop below 41°F. The air conditioner includes a dehumidifier function to help reduce moisture, which can improve comfort during humid days. Users can control it easily through a remote, a smartphone app, or voice commands via Alexa or Google Assistant, offering flexible convenience.

Installation fits most double-hung windows between 24 and 38.5 inches wide, but keep in mind it weighs 58 pounds, so setting it up might require some effort. The washable filter and auto-shutoff features help with maintenance and safety. While this unit is versatile and energy-saving, it may not be ideal for very large spaces or extremely cold climates due to heat pump limits. Also, if you live in a quieter environment, the 45 dB noise level is low but not silent. This Midea model represents a practical, feature-rich option for those needing a dependable window AC with heating and smart controls.

The Hisense 8,000 BTU Portable Air Conditioner is a good choice if you need to cool a small to medium-sized room of about 350 square feet. Its dual-hose design helps cool the space faster compared to single-hose units by preventing negative air pressure inside the room. It uses inverter technology, which makes it more energy-efficient—up to 40% better than many traditional portable ACs—and has a respectable 4-star energy rating.

Noise-wise, it runs quietly at about 42 decibels, which is roughly the sound level of a quiet conversation, so it should be suitable for bedrooms or living rooms where you want peace and comfort. Installation is straightforward thanks to the snap-together window kit that fits a variety of window sizes, simplifying setup. The unit is also smart-home friendly with Wi-Fi connectivity, allowing control via the free ConnectLife app or voice commands through Google and Alexa. It offers three operation modes, so you can adjust cooling or use it as a fan or dehumidifier depending on your needs.

It is somewhat heavy at 61 pounds, which may make moving it around a bit challenging, and the warranty is limited to 90 days, which is shorter than many newer models offer. Additionally, while the cooling power is effective for smaller rooms, larger spaces might require a more powerful unit. This portable AC is energy-conscious, fairly quiet, and easy to install, making it a practical option for those looking for a flexible cooling solution with smart features for smaller areas.