10 Best Slider Window Ac Units 2025 in the United States

The LG 8,000 BTU Window Air Conditioner is a solid choice for cooling medium-sized rooms up to 340 square feet, making it suitable for bedrooms, living rooms, or apartments. Its cooling capacity is impressive, ensuring a comfortable environment. The unit operates quietly at 53 dB in low mode, which is beneficial for maintaining a peaceful atmosphere, especially during sleep or work.

The 3 cooling and fan speeds offer customization for different preferences, and the auto-restart feature is convenient during power outages, automatically resuming operation once power is restored. Additionally, the unit comes with a remote control and an easy-to-use digital control panel, enhancing usability. The 4-way air deflection allows flexible airflow direction, and the included filter light reminder helps maintain optimal performance.

The window installation kit and washable filter also add to its practicality. However, the product lacks an Energy Star certification, which might be a drawback for those seeking highly energy-efficient options. The Seasonal Energy Efficiency Ratio (SEER) of 13 is decent but not exceptional. The size and weight of the unit (58 pounds and dimensions of 19.6 x 19.4 x 12.4 inches) should be considered when planning installation, ensuring it fits well in the intended window space. While it offers good cooling performance and quiet operation, its energy efficiency could be improved for more eco-conscious buyers.

The Midea 5,000 BTU EasyCool window air conditioner is a solid option for cooling small spaces of up to 150 square feet, such as bedrooms, living rooms, or home offices. With an energy efficiency ratio (EER) of 11.0, it is relatively energy-efficient and helps reduce electricity costs. It features easy-to-use mechanical controls and comes with 7 temperature settings and 2 cooling/fan-only speeds, allowing for customizable comfort.

The included reusable filter helps maintain air quality and is easy to clean. The unit is moderately quiet at 57 dB, making it quieter than a typical refrigerator, which can be a plus for noise-sensitive users. Installing this AC unit is straightforward, as it fits window frames between 23 and 36 inches wide and at least 13 inches high. All necessary mounting accessories are included, although a screwdriver is required for installation.

One notable drawback is the lack of advanced electronic controls and remote operation, which some users might prefer for convenience. Additionally, while it performs well for its size, it is not suitable for larger spaces. The one-year parts and labor warranty provides some peace of mind, and the build quality is solid, making the Midea 5,000 BTU EasyCool an energy-efficient, user-friendly window air conditioner best suited for small rooms where basic cooling and ease of use are priorities.

The LG 10,000 BTU Smart Window Air Conditioner is a strong choice for cooling medium rooms up to about 400-450 square feet, such as bedrooms, living rooms, or apartments. Its cooling capacity is well-suited to these spaces, providing effective temperature control without being oversized. One standout feature is its Dual Inverter technology, which makes the unit about 25% more energy efficient than standard Energy Star requirements. This helps save on electricity bills and is good for the environment.

In terms of noise, it operates quietly on sleep mode at around 44 dB, which is comparable to a quiet conversation, but in regular use it can be a bit louder (around 58 dB), so it might be noticeable in very quiet settings. The unit's size and design fit standard slider windows, and it comes with useful extras like remote control, filter reminders, and smart WiFi connectivity via LG ThinQ, Amazon Alexa, or Google Assistant, allowing easy adjustments even when you're not home. Another plus is its multiple fan speeds and dehumidifier function, adding comfort options beyond basic cooling.

On the downside, it weighs 63 pounds, which might make installation a bit challenging if you’re doing it alone, and the warranty is limited to one year. This LG model represents a smart, energy-conscious option with advanced features that suit users looking for quiet, efficient cooling with convenient smart controls in medium-sized rooms.