10 Best Lightest Air Conditioner 2025 in the United States

The Midea MAW08HV1CWT EasyCool Smart Inverter Air Conditioner Window Unit is a versatile option for those seeking year-round comfort in a compact design. At 56 pounds, it offers a balance between portability and functionality, suitable for large rooms up to 350 square feet. The 8,000 BTU cooling capacity ensures effective cooling, while the supplemental heat feature provides warmth during cooler months, making it a multi-season solution.

The unit is energy-efficient with a SEER of 14.5 and Energy Star certification, promising up to 35% in energy savings compared to the standard. Users can control the AC through an LED display, remote control, or via the SmartHome app, with the added convenience of voice control through Alexa and Google Assistant. It operates quietly at 45 dB, which is beneficial for maintaining a peaceful environment.

Installation is straightforward, fitting double-hung windows with specific dimensions. However, its weight might make installation a bit challenging for some users, and the heat pump functionality is limited to outside temperatures above 41°F. The unit comes with additional features like a washable filter, dehumidification, and various modes to optimize comfort.

The BLACK+DECKER 8,000 BTU Portable Air Conditioner is a solid choice for cooling small to medium rooms up to around 300-350 sq. ft. It offers a respectable cooling capacity of 8,000 BTU, which should be enough for many bedrooms or small living spaces. Weighing about 45.8 pounds, it’s not the lightest model available but still manageable thanks to its caster wheels and side handles for easier movement between rooms.

In terms of energy efficiency, it has a Seasonal Energy Efficiency Ratio (SEER) of 5.4, which is average and doesn’t carry an Energy Star rating. This means it might use more electricity than some more efficient models, so keep that in mind if your energy bills are a concern. The noise level is 54 decibels, which is moderate and generally won’t be too disruptive during use, especially while sleeping or working.

Installation is straightforward with the included window kit and exhaust hose, so you won’t need professional help to set it up. The unit also includes handy features such as a remote control, a slide-out washable filter, an auto water evaporation system, and a 24-hour timer. Plus, it functions as a 3-in-1 device — acting as an air conditioner, fan, and dehumidifier — which adds versatility. Although it is heavier than some portable AC models closer to 30 pounds, it still offers user-friendly mobility and decent cooling power for small rooms, while trading off some efficiency and weight compared to lighter or more energy-efficient models.

The BLACK+DECKER Smart Portable Air Conditioner offers a solid cooling capacity of 12,000 BTU (8,000 BTU SACC), suitable for rooms up to about 550 sq. ft., making it a good choice for medium-sized spaces. Weighing around 57 pounds, it's not the lightest portable AC on the market, so if you need something very lightweight, this might feel a bit heavy to move frequently. It runs at a moderate noise level of 52 dB, which is relatively quiet for a portable unit and should be comfortable for bedrooms or living rooms. The energy efficiency ratio (EER) is 5.8, which is average—meaning it won’t be the most energy-saving option but still reasonable for everyday use. Installation is user-friendly with an included window kit, making it easy to set up without professional help.

One of its standout features is smart connectivity, allowing control via a mobile app or voice commands through Alexa or Google Assistant, plus a 'Follow Me' remote that measures the temperature where you are for more precise cooling. It also works as a dehumidifier and fan, adding extra value. It is not Energy Star certified, which could be a downside for those prioritizing energy efficiency. This model is practical for users wanting a versatile, moderately portable AC with smart features, but if weight is your top priority, lighter models might be easier to handle.