10 Best Costco Air Conditioners 2026 in the United States

The LG 12,000 BTU window air conditioner is a solid choice for cooling medium-sized rooms up to about 550 square feet, like bedrooms, living rooms, or apartments. Its 12,000 BTU power means it can handle typical spaces without struggling. It operates quietly, at around 52-53 dB on low settings, so it won’t be a noisy distraction while you work or sleep. You get three fan and cooling speeds along with an easy-to-use digital control panel and remote, making adjustments straightforward.

The air conditioner also includes a washable mesh filter with a reminder light, which helps keep the air clean and the unit efficient. With a 24-hour timer and auto restart feature, it offers decent convenience and energy-saving options. However, this unit doesn’t have advanced smart features like WiFi control or app connectivity, which some users might expect these days. Its seasonal energy efficiency ratio (SEER) of 13 is average, so it’s not the most energy-efficient model but should be reasonable for standard use.

The installation kit is included, making setup easier for a window unit. Weighing 81 pounds, it’s on the heavier side but typical for this capacity. This model is a dependable and user-friendly window air conditioner best suited for people who want reliable cooling with quiet performance and basic controls, without needing smart home integration.

The LG 10000 BTU Smart Window Air Conditioner is a solid choice for cooling medium-sized rooms up to about 450 square feet. Its 10,000 BTU power is effective for spaces like bedrooms or living rooms, and it offers three fan speeds plus auto cooling to customize airflow. One strong point is the smart ThinQ technology, letting you control the unit remotely through your phone or voice assistants like Alexa and Google, which adds convenience especially if you want to adjust settings without getting up. The unit operates fairly quietly around 52-53 decibels, which is reasonable for a window AC but not the absolute quietest on the market. Installation is designed to be quick and straightforward, which helps if you’re setting it up yourself. It includes a washable dust filter that’s easy to maintain, promoting cleaner air.

This model does not have Energy Star certification, so it may not be the most energy-efficient option available, reflected by its SEER rating of 11.4. Some users might notice slightly higher energy use compared to more efficient models. Additionally, while it features a dehumidifier function and auto restart after power loss, the noise level might still be a minor downside if you need near-silent operation during sleep. The included remote control and filter light reminder add user-friendly touches. Backed by a one-year warranty and positive customer ratings, this LG air conditioner combines smart features and solid performance, making it a good fit if you value easy control and decent quietness but don’t mind paying a bit more in energy costs.

The LG 8,000 BTU Window Air Conditioner is a solid choice for cooling medium-sized rooms up to 350 square feet, such as bedrooms or living rooms. It offers a good cooling capacity that fits well with the intended room size, ensuring comfortable temperatures without excessive energy use, supported by a decent Seasonal Energy Efficiency Ratio (SEER) of 11.4. One of its strengths is its quiet operation, with noise levels around 53-54 decibels in low mode, making it less disruptive compared to louder units.

You can customize your comfort with three cooling and fan speeds plus an Auto Cool mode, controlled easily via electronic buttons or the included remote, which adds convenience. The Auto Restart feature automatically powers the unit back on after a power outage, so you don’t have to manually reset it. It does not have smart features like Wi-Fi connectivity, which some newer models offer for app control or voice commands. The filter includes a light reminder to signal when cleaning is needed.

Its size and weight are typical for window units, though installation may require some effort. While the unit has a modest energy efficiency rating and quiet operation, it lacks advanced Energy Star certification, so it might not be the best pick for those prioritizing the highest energy savings. This LG air conditioner is a practical and user-friendly option for those wanting reliable cooling in a mid-sized space without complexity or extra smart features.