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 Humhold 14000 BTU Portable Air Conditioner stands out with its powerful cooling capacity, efficiently serving spaces up to 700 square feet. This makes it ideal for larger rooms or open-concept areas. The unit offers a 3-in-1 functionality, providing cooling, fan, and dehumidification options. It allows for temperature control between 61°F and 88°F and helps manage humidity levels effectively. The smart features include a built-in temperature sensor that adapts the unit's function based on room temperature, ensuring optimal comfort with minimal effort. The sleep mode allows for quieter operation, maintaining noise levels below 48dB, which is advantageous for light sleepers or use in quiet environments.

One of the notable conveniences is the no-drain system, which uses a self-evaporation process to minimize maintenance. However, in humid settings, manual drainage might be necessary, which could be a slight inconvenience. The portable design and easy installation process involving a window sealing kit and exhaust hose offer flexibility in placement and setup.

Potential downsides include its reliance on manual drainage in very humid conditions and potentially cumbersome window installation for some users. The energy efficiency ratio isn't specified, which might be a point of consideration for those seeking energy-saving options. The Humhold unit is a versatile choice for users looking for multi-functional cooling solutions, particularly those who prioritize ease of use and mobility.