The 9 Best Portable Air Conditioners
Updated by · How we research
Nine window-vented portable ACs compared by federal cooling rating, hose design, noise and heat mode. The Midea Duo leads for quiet cooling plus heat. When users buy our independently chosen editorial choices, we may earn commissions to help fund the Wiki.
The big BTU number on most boxes comes from an older lab method, and the federal rating that matches a real room is often 30 to 45 percent lower, so size by that one. Every unit here vents heat through a window hose, unlike water-tank air coolers. They suit renters and rooms where a window unit is banned or won't fit.
Editor's Notes
October 26, 2026, by Ezvid Wiki Editors:
The Midea Duo takes the top spot. It cools a large room quietly, heats in mild weather, and two independent summer trials put it at or near the head of the field. Almost nothing from the old list survived: the De'Longhi 4-In-1, Homelabs Cooling AC, Whynter ARC-143MX, Haier 14XCT, Honeywell Contempo, Frigidaire FPA U1 Series and CostWay 23048 are gone, and the Frigidaire Cool Connect and JHS A016 had aged out. The Black + Decker BPact 08 gave way to its bigger sibling, the Black+Decker BPACT10WT.
The most useful evidence here was the federal DOE cooling figure that makers now print beside the inflated box number. Read against room sizing charts, it showed which budget units are really bedroom coolers. We stopped at nine because the other candidates were weaker copies of the budget picks or were only sold refurbished.
Earlier notes
July 17, 2020, by Daniel Imperiale:
More models in this category are gaining Wi-Fi connectivity as smart homes become more popular, but the De'Longhi 4-In-1 is one of the few models that's both trustworthy and designed to integrate easily with Alexa or Google Home Assistant. That doesn't mean you can't enjoy wireless control of the Frigidaire Cool Connect or the JHS A016, but it does mean you're more likely to be dependent on their apps, which can be hit or miss.
Weight can still be a concern here, as well, even though all of these models are given casters for easy movement. If you're placing your AC in a carpeted room, this becomes even more of an important factor. Something like the Haier 14XCT, at over 70 pounds, might not be your best bet there, while the Black + Decker BPact 08, while a little less powerful, weighs only 26 pounds. Look for a middle ground in what you're comfortable to move with the amount of cooling you need.
If you live in a humid climate, it might be smart to look for a model that can handle large volumes of water in its dehumidification efforts, and one with a big enough tank that you won't have drain it every couple of hours — or better still, a model with a drainage hose or auto-evaporation system.
April 16, 2019, by Christopher Thomas:
If central air simply isn't in the picture and you're not keen on installing a window-mounted unit, a portable air conditioner may well get the job done. They're particularly useful for those of us who rent, rather than own, a living space. And you don't have to spend a ton on a decent one, either; the CostWay and JHS prove that. The CostWay and GlobalAir are some of the cheapest, though they can be a tad loud, while the JHS offers wireless control, which is an impressive feature for such an inexpensive choice. Both of Whynter's most popular options are worthwhile considerations because they chill off nearly at a moment's notice, and receive considerable praise from professional appliance testers. Haier makes a range of powerful cooling units, and the one we've showcased here is notable for being one of the quietest around, though it isn't the most efficient. In the ease-of-use category, Honeywell's single-hose model just about takes the cake, as its configuration allows for mostly clutter-free installation. But as far as performance goes, it's hard to top the widely known Frigidaire brand. Their Gallery features a well-refined Wi-Fi controller that works almost perfectly, while their FFPA U1 series comes in a range of sizes and offers a fantastic blend of performance, affordability, and quiet operation.
Special Honors
Movin Cool Climate Pro X For a garage, workshop, server closet or event tent, MovinCool's Climate Pro X spot coolers handle loads a home unit can't. The series runs from 13,200 to 24,000 BTU, the two smaller models plug into a standard 115-volt outlet, and the largest needs a 208 or 230-volt circuit. They're sold through commercial dealers and priced for business buyers. movincool.com
Size It By The DOE Number, Not The Box
The Department of Energy's test adds a second number, labeled DOE or SACC, that counts that loss, and it usually runs 30 to 45 percent lower.
Most boxes lead with an ASHRAE rating, a lab figure that ignores the heat a portable unit leaks back into the room through its own case and hose. The Department of Energy's test adds a second number, labeled DOE or SACC, that counts that loss, and it usually runs 30 to 45 percent lower. That's the number to size by. The Black+Decker BPACT10WT, for example, says 10,000 BTU on the front and 5,550 BTU on the federal test.
Reviewed sizes rooms from the DOE figure: about 6,000 BTU for 150 to 250 square feet, 8,000 for 300 to 350, 10,000 for 400 to 450, and 12,000 for 450 to 550. The rules of thumb on ENERGY STAR's room air conditioner page work here too: add 10 percent for a sunny room, take 10 percent off for a heavily shaded one, add 600 BTU for each regular occupant beyond two, and add about 4,000 BTU for a kitchen. Bigger isn't better. An oversized unit cools the air and shuts off before it pulls out much moisture, so the room feels clammy.
Efficiency is regulated as well. The Department of Energy's standard for portable units took effect in January 2025, though the agency proposed in May 2025 to drop its coverage of the category, so the rule's future is unsettled.
One Hose, Two Hoses, Or An Air Cooler
A single-hose unit uses room air to cool its own compressor, then blows that air out the window. The room loses air it already paid to cool, and warm air seeps in under doors and around windows to replace it. It still works, especially in a bedroom, and it costs less. A dual-hose unit pulls outside air in through one hose and sends it back out through the other, so the cooled air stays put. Bob Vila's two-month trial in Florida heat favored dual-hose models for larger rooms. The Midea Duo nests both hoses in one sleeve, so it needs only one window opening.
Inverter compressors slow down when the room reaches the set temperature instead of switching fully on and off. That makes them quieter overnight and cheaper to run, which shows in the low-speed noise figures of the inverter models on this list.
An evaporative air cooler is a different machine: a fan blowing through a wet pad, with no compressor and no window hose. It needs no window, but it adds moisture, cools only a few degrees and does little in humid weather. If a listing shows a water tank and no exhaust hose, it isn't an air conditioner.
Noise, Water And The Window Kit
Portable units are louder and less efficient than window units, because the whole compressor sits in the room with you. Reviewed found most portables run around 56 decibels, about the level of normal conversation, while the quietest inverter models get into the low 40s on their lowest fan. For a bedroom, compare the low-speed figure.
Every unit pulls water from the air. Models without self-evaporation need their tray or tank drained, often about every eight hours in muggy weather, and even self-evaporating units can stop with a full-tank error in very damp rooms. A drain hose to a floor drain fixes that in a basement.
Check that the window slider fits your opening before you order, keep the exhaust hose short and straight, and seal gaps with foam. The hose runs warm, so an insulating sleeve helps. Plug the unit straight into a wall outlet, not an extension cord or power strip, as makers instruct. Expect five to ten years of service. The Consumer Product Safety Commission lists a 2021 recall of Royal Sovereign portable units for a drain motor that could ignite, and a 2016 recall of three LG models for overheating. We found no portable air conditioner recalls for the brands on this list.
How we researched this
We compared 24 portable air conditioners, checked each finalist's federal DOE cooling figure against its box rating, read two independent hot-weather room trials and a roundup of other published tests, screened owner feedback for recurring faults, and checked every brand for recalls with the U.S. Consumer Product Safety Commission.
Sources (8)
- Bob Vila: The Best Portable Air Conditioners, tested
- Reviewed: The Best Portable Air Conditioners
- SlashGear: Best portable air conditioners in 2026
- Midea: Midea Duo MAP14HS1TBL
- U.S. Department of Energy: Portable air conditioners
- ENERGY STAR: Room air conditioners
- U.S. Consumer Product Safety Commission: Recalls
- MovinCool: Climate Pro X series
Frequently asked questions
Can a portable air conditioner work without a window?
A real portable air conditioner needs somewhere to send its heat, usually a window, though a sliding door, wall vent or drop ceiling can work with the right kit. Units with no hose are evaporative coolers, which cool far less.
What size portable air conditioner do I need?
Go by the DOE or SACC rating, not the bigger ASHRAE number. Roughly 8,000 BTU DOE covers 300 to 350 square feet, 10,000 covers 400 to 450, and 12,000 covers 450 to 550. Add about 10 percent for a sunny room.
Can I plug a portable AC into an extension cord?
No. Makers tell you to plug it directly into a grounded wall outlet. The compressor draws a heavy, steady load that can overheat extension cords and power strips.
Is a portable AC as good as a window unit?
No. A window unit of the same rating cools more for less power and runs quieter, because its compressor sits outside. A portable makes sense when a window unit isn't allowed, won't fit or has to move between rooms.
Do portable air conditioners also heat?
Only models with a heat pump or heater, such as the Midea Duo, the Amazon Basics 13,500 BTU and the SereneLife SLINV12CHPD. Heat pumps lose output as it gets colder outside; the Midea Duo's works down to about 41 F.
How long does a portable air conditioner last?
About five to ten years with a clean filter, a drained tank and dry storage over the winter.
