10 Best Window Acs 2025 in the United States

The Windmill 8,000 BTU Window Air Conditioner is a stylish and efficient option for cooling spaces up to 350 square feet. With a sleek design and curved edges, it easily blends into modern home decor. One of its standout features is the ultra-quiet operation at 50 dB, which makes it suitable for bedrooms and living rooms where noise levels need to be minimal. Additionally, the auto-dimming LED display ensures it won't disturb your sleep at night.

The unit is equipped with smart capabilities, including Wi-Fi and app control, allowing you to manage it remotely via your smartphone or through voice commands with any voice assistant device. This can be particularly handy for adjusting settings before you arrive home or if you forget to turn it off when you leave. Installation is made simple with a pre-assembled install kit and clear instructions, meaning you can have it up and running quickly without much hassle.

In terms of efficiency, the Windmill AC has a Seasonal Energy Efficiency Ratio (SEER) of 6.2, which is decent but not the highest in its category. It uses R32 refrigerant, which is more environmentally friendly compared to traditional options. Maintenance is user-friendly with a filter light reminder that prompts you when it's time to clean or replace the dust filter. On the downside, its energy efficiency ratio and wattage might not be the best for those highly concerned with energy consumption. At 71.4 pounds, it’s also relatively heavy, which could make installation a bit challenging for some users. Despite these, the Windmill 8,000 BTU Window AC offers excellent cooling power, smart features, and ease of use, making it a solid choice for anyone looking to cool a medium-sized room efficiently.

The Whynter Portable Air Conditioner boasts a robust 14,000 BTU (ASHRAE) and 10,300 BTU (SACC) cooling capacity, making it suitable for cooling spaces up to 500 square feet. This unit operates relatively quietly at a noise level of 53 dB, which is comparable to a normal conversation, making it a good option for bedrooms or home offices. One of the standout features is its dual hose system, which enhances cooling efficiency and speeds up the cooling process compared to single-hose models.

Its dehumidifying capacity is impressive, removing up to 71 pints of moisture per day, which can be particularly beneficial in humid climates. The unit also comes with multiple operational modes including cooling, dehumidifying, fan, and auto, providing flexibility based on your needs. The energy efficiency ratio (EER) is decent at 13, though there are more energy-efficient models available in the market.

It’s easy to install with an extendable exhaust hose and a window kit, and its portability allows you to move it between rooms with relative ease. The air filtration system includes an activated carbon filter and a washable pre-filter, contributing to cleaner indoor air. However, it is quite heavy at 73 pounds, which might make it difficult for some users to move around. It does not have an Energy Star rating, which means it may consume more electricity compared to other energy-efficient models. The unit comes with a one-year limited warranty on the main unit and three years on the compressor. If you need a portable air conditioner with good cooling capacity and dehumidification features, and you don’t mind the higher energy consumption, this Whynter model could be a strong choice.

The DeLonghi America PACEM360 WH DeLonghi Penguino Portable Air Conditioner is designed for medium-sized rooms up to 400 square feet. It offers a cooling capacity of 6000 BTUs (SACC), making it suitable for moderately warm environments. One of its strengths is its energy efficiency, being up to 17% more effective than some previous models, though it does not have an Energy Star rating. The noise level at 53 dB is reasonable, especially on the low setting which offers quieter operation for peaceful cooling.

Size-wise, the unit is fairly compact and portable, with dimensions of 13.6”D x 16.7”W x 27.6”H and pre-attached wheels for easy relocation from room to room. Installation is straightforward and user-friendly, with an included window kit and remote control for convenient operation. Additional features like the programmable timer, washable dust filter, and eco-friendly gas contribute to its user-friendly design. Maintenance is simple with the washable filter that can be cleaned under a faucet.

However, its Seasonal Energy Efficiency Ratio (SEER) of 6.92 is relatively low compared to some other models on the market. It provides good cooling and dehumidification, but its effectiveness may decrease in larger or hotter spaces. This unit is best suited for users looking for a portable and eco-friendly solution to cool medium-sized rooms efficiently.