We researched over 65 products, then purchased the 8 best portable air conditioners on the market in 2020 to test side-by-side to see which air conditioner is really the coolest. We waited until the warmest summer days to measure just how well each product can cool a room using a lab-grade thermometer and high-quality data loggers. We also measured the power consumption and the sound generated by each appliance. Check out the full review to see which product is best for the hottest climates, which is going to be the friendliest to your power bill, and which is the most portable portable air conditioner.
The Best Portable Air Conditioners of 2020
Best for Hotter Climates
Whynter ARC-122DS Elite
Earning one of the top scores of the entire group, the ARC-122DS Elite is an all-around, fantastic portable air conditioner. This unit is exceptionally quiet and unobtrusive, making it a great option if you have a hard time focusing or sleeping when there is background white noise. This unit has solid cooling power, is decently portable, and isn't a glut when it comes to energy consumption. The Elite is a dual-hose air conditioner, which cools much better than single-hose models when outside temperatures are extremely high, making this unit a great option if you live in a place that regularly hits triple digits.
However, the ARC-122DS is one of the more expensive models of the review in terms of initial investment and only received a lackluster score in our energy consumption assessment. This portable A/C also has a double-hose system and is decently large overall, making it much more visually intrusive. Despite these flaws, the 122DS is one of our all-time top recommendations for anyone that needs maximum cooling power in the hottest locales.
Read Full Review: Whynter ARC-122DS Elite
Best Value Overall
Matching the performance of the ARC-122DS Elite, the Whynter ARC-08WB is another fantastic portable air conditioner, with the added benefit of being much easier on the budget — both in terms of initial investment and cost to run. It has solid cooling power, but it is in the energy cost metric where this product really stands out. This A/C completely dominated our energy cost projections, consuming significantly less energy than any other model we have tested to date. It's also one of the most easily moved models and one of the least expensive units that work well.
Unfortunately, we did find one significant flaw with this product: noise. This is one of the louder A/C units we have tested, which can be a bit of an issue if you can't stand white noise. However, this is the clear choice if you are shopping on a budget or don't want to blow up your electric bill.
Read Full Review: Whynter ARC-08WB
Best Budget Pick for Smaller Rooms
The BLACK+DECKER BPACT08WT is far from our favorite portable A/C overall, it is a good option if you are shopping on a budget and only need to cool a smaller room or only have light to moderate cooling needs. It is relatively energy-efficient compared to other models, fairly easy to roll around, and doesn't create an obtrusive amount of noise.
However, this air conditioner definitely can't compare to the top-tier models when it comes to cooling impact. It struggles to be effective if it is particularly warm outside or if the room is large. The window insert also isn't the easiest to install. While the cooling power of this air conditioner didn't earn it accolades, it is a product we would recommend if you are budget-constrained when shopping for a new A/C and can get away with its limited cooling power.
Read Full Review: BLACK+DECKER BPACT08WT
Best for Portability
The Honeywell HL09CESWK is one of our favorite recommendations if you are looking for a portable A/C that is somewhat easy to move. This unit rolls exceptionally easily and has decently comfortable handles if you do need to carry it. This air conditioner also has one of the easiest window inserts to install or remove, requiring no tools at all. The HL09CESWK is also decently quiet and scored fairly well in our energy consumption test.
Unfortunately, the HL09CESWK didn't do amazingly well in our cooling tests, taking significantly longer to cool down our test room than other A/C's — even those with a lower BTU rating. It also is a little on the more expensive side than some of the other models, though we have found it retailing for quite a bit less than its list price on occasion. It's a great option if you are planning on moving your portable A/C around a ton and is pretty much as portable as these products get, though it isn't the best option for those in the hottest regions.
Read Full Review: Honeywell HL09CESWK
Best for Maximum Cooling Power
If you live somewhere that is particularly hot, then you are going to want to consider a dual-hose portable air conditioner. These are usually much more efficient than single-hose varieties, as you don't lose any cold air to the outside and the Whynter ARC-14SH is one of our favorite dual-hose options. It imposed one of the largest temperature drops on our test room over an hour and has the listed capacity to handle rooms up to 500 sq. ft.
Unfortunately, this A/C can consume quite a bit of electricity and the dual hoses make it a little more cumbersome to move around and set up. It also tends to be more on the expensive side but it is our top recommendation if you need maximum cooling power.
Read Full Review: Whynter ARC-14SH
Why You Should Trust Us?
We bought all the portable air conditioners used in this review from major retailers at retail prices — just like anyone would — so you can trust we don't have a vested interest in any one product winning over another. Our portable air conditioner testing and review team is composed of Austin Palmer and David Wise . Austin has tested dozens and dozens of different appliances for TechGearLab and grew up in the Houston area, making him exceptionally familiar with air conditioners of all types. David has a degree in mechanical engineering and lends his experience with data acquisition, instrumentation, and heat transfer to the design and execution of our testing process in addition to his extensive background reviewing home products.
We tested out these air conditioners for hour after hour in the absolute peak of summer heat, comparing their cooling power head-to-head using calibrated high-end thermometers and temperature loggers. We also weighed and measured the power draw of each appliance so you can be sure that you aren't going to torch your power bill by running these. Finally, we also rated the ease of rolling and carrying these supposedly portable products.
Analysis and Test Results
To determine which portable air conditioner is really the best of the best, we conducted extensive research and evaluated over 65 different products. We then bought the most promising models currently available and compared their performance side-by-side, grading their performance in four weighted rating metrics: Portability, Cooling Power, Noise, and Energy Cost.
None of these products are particularly inexpensive. However, there is one product that clearly stands out from the rest if you are shopping on a budget: the Whynter ARC-08WB. This model retails at a much more affordable price and delivered one of the best performances we have seen to date, making it a great value on its own merits. On top of that, this is also one of the most energy-efficient models we have seen, making its annual cost to run lower than the majority of its competitors.
Since cooling a room is the main use for each of these products, it's easy to see why this metric accounts for 40% of the total score for each product in our review. To rank and score the cooling power of each unit, we compared how well each product could cool our test room in 60 minutes. While these units all have different BTU and room size rating, our 161 sq. ft. test room was well within the room size of each product and we found this wasn't terribly indicative of performance in our test.
We did the test at the same time each day in the middle of summer, with similar amounts of sunlight entering the room to keep the outdoor temperature as controlled as possible. We then heated the room with a set of space heaters — usually well above 90°F — stopped them and then gave the room enough time to hit a steady-state temperature before starting the test, so we didn't artificially improve the cooling power of the A/C's as it naturally cooled off. We measured the starting ambient temperature and scored off the temperature drop achieved in 60 minutes.
The Whynter ARC-14SH led the way in this test, earning a 6 out of 10. This unit is rated for up to 500 sq. ft. and dropped the temperature of our testing room by 11.99°F.
A group of A/C units all tied for the runner-up position, with the Honeywell HL09CESWK, the Frigidaire FGPC1244T1, the Whynter ARC-08WB, and the Whynter ARC-122DS Elite all earning a 5 out of 10 for their moderately cool performance in our cooling challenge. The 12,000 BTU Frigidaire has the highest room size rating at 550 sq. ft. and actually did the second-worst of this group, but only by a tiny fraction of a degree.
The Frigidaire chilled the room 9.93°F and the HL09CESWK dropped it by 9.74°F, while both of the Whynter models dropped the temperature by an even 10°F. We thought this was quite interesting, as there is a stark difference in the room ratings and BTU values of these models. The 8,000 BTU ARC-08WB is rated for 250 sq. ft. while the 12,000 BTU ARC-122DS Elite is rated for up to 400 sq. ft. rooms. The HL09CESWK is a 9,000 BTU unit and is also rated for up to 400 sq. ft.
The Honeywell MN10CESWW and the other model from LG, the LP0817WSR came next, both meriting a 4 out of 10 for their lukewarm cooling attempts. We expected a little more from the Honeywell, as it is rated to be able to cool up to a 450 sq. ft. room, but only dropped the temperature of our 161 sq. ft. test room by 8.66°F after an hour. The LG LP0817WSR dropped it even less, only reducing the temperature by 8.21°F, but is only rated for up to a 200 sq. ft. room.
Finishing at the back of the group, the BLACK+DECKER BPACT08WT earned a 3 out of 10 for doing the least to drop the temperature. This 8000 BTU unit is allegedly effective in areas up to 300 sq. ft., but only dropped the temperature in our smaller room by 6.4°F after 60 minutes.
After seeing how well these products really could cool, we moved on to evaluating and scoring how portable these purportedly portable air conditioners are. This metric is responsible for 25% of the total score and is based on how much effort it takes to roll each air conditioner around, how maneuverable they are, the ergonomics of the handles and difficult in carrying (including weight!), and how hard it is to install and remove the window inserts.
In the effort of full disclosure, none of these products as being all that portable. While they certainly can be moved from room to room on an infrequent basis or taken out and stored seasonally without too much of a fuss, you probably shouldn't have any illusions about moving this around with your from room to room throughout your day to save on energy costs, like you might move a space heater. On average, it probably took 15 to 20 minutes to remove the window insert, move the A/C to a nearby room, and reinstall the insert.
The Honeywell HL09CESWK earned top marks in our portability metric, earning an 8 out of 10 for its performance. While this portable air conditioner isn't the lightest model we have tested --weighing about 65 lbs. — it is the easiest to roll around. You can push it around practically effortlessly on hard floors and low-pile carpet and it tracks in a straight line, without the casters oversteering in the slightest.
The handles of this air conditioner are just above halfway up on each side and feel fairly comfortable to hold, with no sharp edges or lips that can cut into your hand. Unfortunately, we found these handles can get a little slick if your hands are sweaty — which is fairly inevitable when carrying this 65-pound product around. Additionally, we liked that the window insert for this A/C is one of the easiest to install or disassemble. We also liked that the window insert doesn't require any tools or screws to assemble, instead being held together with push-in plastic tacks, which makes this one of the easiest products to move between windows.
The Whynter ARC-08WB and the Honeywell MN10CESWW followed, both meriting a 7 out of 10 in this set of tests. The Whynter ARC-08WB is very easy to roll around but it can get a little squirrely when pushing in a straight line — struggling a little to stay on course with the casters being a little oversensitive. This air conditioner is also one of the easiest models to carry, due to its ergonomic handles and lighter weight.
However, the window insert can take a little bit of time to set up and does require a screwdriver.
The Honeywell is a little easier to roll around, having the same lack of rolling resistance as the ARC-08WB, but doing a little better at staying on course. It is also a little easier to install the window insert, relying on wingnuts, rather than normal screws, so no tools are required. It isn't that much faster to install though.
Unfortunately, the Honeywell is a bit harder to carry. The handles are fine, but it weighs about 10 lbs. more than the ARC-08WB.
The majority of the models came next, with the Whynter ARC-122DS Elite, the BLACK+DECKER BPACT08WT, the Frigidaire FGPC1244T1, and the LG LP0817WSR all receiving a 6 out of 10 for their performance.
The Whynter Elite is fairly easy to roll around, offering barely any rolling resistance and is one of the more maneuverable models. However, we did notice that it can be a little finicky when it comes to turning, seemingly having a much greater affinity for continuing in a straight line than pivoting. It is also quite easy to set up the window insert, though it does require a screwdriver to tighten the pair of screws that lock in the length.
Unfortunately, this model is a giant pain to carry, having a somewhat inconvenient and hard to hold handle design and is one of the heaviest models of the group.
However, the Frigidaire managed to be even harder to carry, weighing in at almost 20 lbs. heavier and having awful handles that are quite painful on your hands when carrying.
This model was slightly redeemed by being surprisingly easy to roll around. It's very maneuverable and has surprisingly little rolling resistance, considering its bulk. It is also very easy to install the window insert, with a tool-free process relying on a quick-release lever. However, we would recommend steering clear of this A/C if you live in a multi-level home and are going to be moving it up and down stairs — the Whynter ARC-08WB or the LG LP0817WSR would be far better options.
Speaking of the LG, the LP0817WSR may be easy to carry, but it isn't the easiest to roll around. We noticed significant rolling resistance and the steering can be a little finicky. Additionally, the window insert installation process isn't the easiest we have seen.
The BLACK+DECKER BPACT08WT has the dual benefits of being both easy to carry and easy to roll around. It has virtually no rolling resistance and maneuvers similarly to the Whynter ARC-08WB. It's easier to carry than the Honeywell, but a little bit more work than the LG LP0817WSR, even though the BLACK+DECKER is about 7 lbs. lighter. The handles on this product are just a little too small, making it harder to lift and dropping its score. Finally, the window insert on the BLACK+DECKER is a little more work to mount or remove, requiring a screwdriver as well.
Rounding out the back of the group, the Whynter ARC-14SH earned a 5 out of 10 for being somewhat wanting when it comes to ease of transport. The ARC-14SH has very little rolling resistance, but is a bit funky when it comes to maneuverability. The Whynter model doesn't like rolling in a straight line, swerving randomly.
This model is incredibly arduous to carry, with the Whynter weighing in at 77.2 lbs. On top of that, it has exceptionally small handles and isn't easy to hold on to at all. However, the window insert on the ARC-14SH is decently easy to install, giving you plenty of adjustability — much more than the LG LP0817WSR.
After lugging these (not so) portable air conditioners up and down stairs and across rooms, we were ready for a test that required a little less physical exertion and moved on to ranking and scoring how loud each of these products are. This metric is worth 20% of the total score and consists of two tests: noise levels measured with our SPL meter and having a panel of judges rate the relative annoyance of the tone of the sound produced by each product.
When it comes to sound, the Whynter ARC-122DS Elite and the Whynter ARC-14SH claim the top spot for being the least obtrusive. We measured the noise level from 4' away, with the meter's microphone out of the direct airflow of each portable air conditioner and these two had some of the lowest results.
In particular, our judges liked that not only are both the Whynter models exceptionally quiet, but the sound produced by them also isn't exceptionally grating on the ear — something more akin to static or white noise that easily fades into the background.
Following the pair of Whynter models, the Frigidaire FGPC1244T1 came next, earning a 7 out of 10. This portable air conditioner is equally quiet on the SPL meter, but you can hear the compressor over the fan running — the exact opposite of the top models. This slightly irregular sound is a bit more distracting and noticeable, dropping the Frigidaire's score.
The BLACK+DECKER BPACT08WT and the Honeywell HL09CESWK are both just above average in terms of being quiet, each meriting a 6 out of 10. The BPACT08WT is just a little bit louder than the top models but doesn't have any standout tones, like the Frigidaire, making it a better option if you are better at dealing with white noise than distinct tones.
The HL09CESWK is fairly quiet but can't match the Whynter models in terms of silence. The compressor on this model is louder than the fan but only gives particularly irritating tones on startup.
Next, the Honeywell MN10CESWW and the LG LP0817WSR, both earned a 5 out of 10. This pair of portable air conditioners are both just a bit louder than the BLACK+DECKER but also lack any noticeably irritating tones.
Finishing at the back of the pack in this metric, the LG LP1215GXR earned a 4 out of 10 and the Whynter ARC-08WB earned a 3 out of 10 for being a bit on the noisy side. This pair measured at the same level on the SPL meter, but our panel wholeheartedly agreed that the Whynter is significantly louder and more irritating, with a particularly loud exhaust fan.
For the final 15% of the total score for each portable air conditioner, we looked at how much it actually costs to run each of these models annually and thus, how efficient they are. For our somewhat conservative model, we went with running each of these units for 12 hours a day for the entire summer (90 days). We also assumed that the 12 hours was split, with 2 hours of the A/C being on high to initially drop the temperature when you come home, then run on low for the remaining 10 hours to maintain the temperature at a comfortable level. We used 0.135 cents per kWh for the cost of electricity in our calculations.
We measured the energy draw of each model for 30 minutes with a wattmeter on both low and high modes when the outside temperature was in the mid to high 80's to determine the average power consumption of each product for use in our calculations. Now, the number we came up with for annual cost isn't necessarily going to be true for you, as the prices of electricity can vary wildly across different areas, as well as the demand for A/C. You may be in the tropics and need to run the A/C 365 days a year, in which case your annual cost is obviously going to be tremendously higher than ours, but the relative ranking of the A/C units should remain the same, with our results below.
If you are living in an area where you are going to be running the air conditioner more than just the hottest summer months, you probably want to place a higher weight on this metric and be a bit more biased than we were in our relatively temperate climate to models that performed well in these tests.
The best you can get by far when it comes to energy cost and efficiency, the Whynter ARC-08WB easily claimed the top position in this test, earning a 10 out of 10 for its phenomenal performance. This portable air conditioner ended up costing a little less than a dollar a day to run using our 2 hours high, 10 hours low model, which we would project to cost $81.90 to run for the whole summer and use a total of 622.8 kWh, making it by far the least expensive out of the entire group.
The BLACK+DECKER and the Honeywell HL09CESWK came next, both earning a 7 out of 10. We would estimate the BLACK+DECKER to consume about 864 kWh throughout the summer, with the HL09CESWK using just a little bit less — approximately 850 kWh. This correlates to a projected cost of around $114 for the BLACK+DECKER and $112 for the HL09CESWK.
Performance dropped a bit with the next group — the Honeywell MN10CESWW, the LG LP0817WSR, and the Whynter ARC-122DS Elite all earning a 5 out of 10 for their middle-of-the-road showing. The LG used the least amount of energy of this trio in our model, projected to use about 979 kWh and cost $128 or so to run for the full summer. The Honeywell should use a bit more — about 980 kWh — and the Whynter would use even more electricity — just over 1000 kWh — to bring their estimated costs up to approximately $130 and $132, respectively.
The Frigidaire and the Whynter ARC-14SH followed, earning a lowly 3 and 2 out of 10 respectively in our power consumption metric. Our projected summer operating cost spiked with these two models and we would estimate that they would add $155-$160 to your power bill using our model.
At this point, you should — hopefully! — have a solid idea about which air conditioner is going to be your best bet when it comes to beating the sweltering summer heat and staying in your budget, all while being portable enough to move when you need it.
— Austin Palmer and David Wise