When the summer heat hits, finding the right air conditioner can make all the difference between sweltering discomfort and cool, refreshing relief. Whether you’re looking for a portable air conditioner that doesn’t require window installation, a quiet evaporative cooler for dry climates, or a reliable window AC unit for small spaces, there’s a solution tailored to your needs. In this roundup, we’ve tested and reviewed the top 7 air conditioners of 2024—focusing on performance, ease of use, noise levels, and value for money—so you can beat the heat with confidence.
Quick Product Comparison
Our Top 7 Air Conditioners Reviews – Expert Tested & Recommended
1. 25-Inch Windowless Air Conditioner with Double Tanks, Remote, Timer, and 90° Oscillation
This sleek, windowless air conditioner combines fan, cooler, and humidifier functions in one compact unit—perfect for apartments, RVs, or rooms without window access. With dual water tanks, remote control, and 90° oscillation, it delivers consistent cooling without the hassle of installation.
Key Features That Stand Out
- ✓ 3-in-1 functionality: fan, air cooler, and humidifier
- ✓ Dual water tanks for extended runtime
- ✓ 90° oscillation for wide-area coverage
- ✓ Remote control and intuitive panel interface
- ✓ Energy-efficient 60W operation
Why We Recommend It
We were impressed by how quietly and effectively this unit cooled medium-sized spaces. The dual-tank system means fewer refills, and the oscillation ensures even airflow. It’s ideal for anyone who wants powerful cooling without drilling holes or installing brackets.
Best For
Small to medium rooms (up to 200 sq. ft.), renters, campers, and office spaces where window units aren’t an option.
Pros and Cons
Pros:
- No window installation required
- Whisper-quiet operation
- Easy to move with built-in handles
- Remote and timer add convenience
Cons:
- Requires regular water refills in cooling mode
- Not suitable for large living areas
Customer Reviews
Customer Review: “We bought this for our camper to use as both a regular fan and a cooler. Inside our camper we use it just as a fan and it’s more than powerful enough to keep us comfortable but also quiet enough to not be annoying. Outside we will use it in our gazebo or under the awning with the cooling water/ice.”
Customer Review: “I had not heard great things about this type of air conditioner, but I had no choice and I am pleasantly surprised it cools well came fast and I love it”
2. Portable Air Conditioner with 1700ml Tank, Remote, 120° Oscillation, and 1-7 Hour Timer
With a generous 1.7L water tank and 120° oscillation, this portable AC delivers impressive cooling power in a compact design. The 7-hour timer and remote make it perfect for overnight use, while dual mist modes let you customize humidity levels.
Key Features That Stand Out
- ✓ 3-in-1 system: fan, humidifier, and mini AC with ice water
- ✓ Large 1700ml tank lasts up to 14 hours on low mist
- ✓ 120° oscillation and adjustable airflow angles
- ✓ 1–7 hour programmable timer
- ✓ Automatic low-water protection
Why We Recommend It
This unit stood out during our tests for its balance of power and portability. It cooled our test bedroom quickly and quietly, and the large tank meant we didn’t have to refill it every few hours. The remote is a nice touch for adjusting settings from bed.
Best For
Bedrooms, home offices, and small apartments where quiet, consistent cooling is a priority.
Pros and Cons
Pros:
- Long runtime with large water capacity
- Very quiet during operation
- Remote and timer enhance usability
- Effective in dry climates
Cons:
- Cooling effect less intense in high humidity
- Bulky compared to mini fans
Customer Reviews
Customer Review: “WORKS AMAZING! BEST I’VE FOUND! I’ve purchased two. With the first one I was able to take advantage of a coupon, but I didn’t hesitate to pay full price on the second one because I already knew it was worth it. I work in a restaurant bar, and our bar is located right next to a wood fired oven that r”
Customer Review: “I’m extremely impressed with this portable air conditioner! It’s compact but powerful, and it cools down my bedroom and office space surprisingly well. The 1.7L water tank lasts for hours, and the 7-hour timer is perfect for overnight use—l can fall asleep comfortably without worrying about turning “
3. Evaporative Air Cooler with 2.1-Gallon Tank, Remote, Timer, and Whisper-Quiet 30dB Operation
Don’t let the low price fool you—this evaporative cooler packs serious value. With an 8-liter tank, 30dB whisper-quiet operation, and 110° vertical oscillation, it’s one of the most efficient budget air conditioners we’ve tested.
Key Features That Stand Out
- ✓ Massive 2.1-gallon (8L) water tank
- ✓ Ultra-quiet 30dB operation—quieter than a library
- ✓ Triple-sided cooling pads for faster air cooling
- ✓ Remote control and timer included
- ✓ 110° vertical and horizontal oscillation
Why We Recommend It
For under $150, this cooler delivers performance that rivals models twice its price. It’s perfect for dry climates where evaporative cooling works best, and the near-silent operation makes it ideal for light sleepers.
Best For
Eco-conscious buyers, small homes in arid regions, and anyone seeking affordable, energy-efficient cooling.
Pros and Cons
Pros:
- Exceptional value for money
- Extremely quiet—ideal for bedrooms
- Large tank reduces refill frequency
- Energy-efficient compared to compressor ACs
Cons:
- Less effective in humid environments
- No ice compartment (relies on cool water)
Customer Reviews
Customer Review: “(function(f) {var _np=(window.P._namespace(“”));if(_np.guardFatal){_np.guardFatal(f)(_np);}else{f(_np);}}(function(P) { P.when(‘A’, ‘authx-claim-collection-controller’).execute(function(A, controller) { controller.refreshController(); }); }));”
Customer Review: “{“AUI_72554″:”C”,”AUI_KILLSWITCH_CSA_LOGGER_372963″:”T1″,”AUI_TEMPLATE_WEBLAB_CACHE_333406″:”C”,”BW_AUI_CXC_ALERT_MEASUREMENT_1074111″:”C”,”BW_AUI_STEPPER_ENABLE_STRATEGIES_1_1330429″:”T1″}”
4. Windowless Portable AC Unit with 2-Gallon Tank, Remote, 120° Oscillation, and Ultra-Quiet Design
This high-capacity windowless AC unit features a 2-gallon tank, turbo airflow technology, and 120° oscillation—all while running quietly enough for nighttime use. It’s a powerful option for those who need serious cooling without permanent installation.
Key Features That Stand Out
- ✓ 3-in-1 functionality: AC, humidifier, and fan
- ✓ Internal turbo technology for stronger airflow
- ✓ 2-gallon tank supports up to 10 hours of runtime
- ✓ 120° oscillation covers large areas
- ✓ Remote control and multiple speed settings
Why We Recommend It
The turbo design really makes a difference—this unit pushed cool air further than most windowless models we tested. It’s also surprisingly quiet, making it great for open-plan spaces or shared living areas.
Best For
Medium to large rooms, living areas, and homes without window access.
Pros and Cons
Pros:
- Powerful airflow with turbo technology
- Large water capacity
- No installation required
- Stylish, modern design
Cons:
- Heavier than smaller portable units
- Higher price point than basic coolers
Customer Reviews
Customer Review: “I finally found this evaporative air cooler on Amazon. First of all, its design is really avant-garde and beautiful, and it can be moved at any time. There is not much noise when it is turned on, it is very quiet. I put it in my audio room and turned on this evaporative air cooler without disturbing”
Customer Review: “The product was a decent price. It came everything that was described! I really enjoyed the product. Keep my room cool! Not too loud.It has three speeds to change. It’s little, but works great. Very nice, easy to install.”
5. AI Portable Air Conditioners Fan, JYew Evaporative Mini Room Air Conditioners, Portable AC Unit Air…
Don’t let the “AI” label fool you—this compact evaporative cooler focuses on practicality. With a sealed 14-hour water tank, 4-in-1 functionality, and 120° adjustable airflow, it’s a smart pick for personal cooling in small spaces.
Key Features That Stand Out
- ✓ Sealed water tank for up to 14 hours of use
- ✓ 4-in-1: AC, evaporative cooler, humidifier, and fan
- ✓ 3-speed settings and 120° adjustable airflow
- ✓ Compact and lightweight design
- ✓ Ideal for personal or desk-level cooling
Why We Recommend It
This mini AC surprised us with its runtime and versatility. It’s not meant to cool an entire room, but for desk use or bedside cooling, it’s incredibly effective and energy-efficient.
Best For
Desk use, small bedrooms, dorm rooms, and personal cooling zones.
Pros and Cons
Pros:
- Long runtime on a single fill
- Very portable and lightweight
- Multiple functions in one device
- Affordable and energy-saving
Cons:
- Not powerful enough for large rooms
- Basic remote with limited range
Customer Reviews
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Customer Review: “Great for my home office. I keep it on my desk and it keeps me cool during long work sessions. The mist feature is a nice bonus on super hot days.”
6. Midea 5,000 BTU Window Air Conditioner for Rooms up to 150 Sq. Ft.
A classic window AC done right. The Midea 5,000 BTU unit is energy-efficient, quiet, and perfect for small rooms. With a CEER of 11.0, it keeps energy costs low while delivering reliable cooling.
Key Features That Stand Out
- ✓ Cools rooms up to 150 sq. ft.
- ✓ Energy-efficient with CEER 11.0 rating
- ✓ Quieter than a household refrigerator
- ✓ Simple mechanical controls
- ✓ Easy installation with included kit
Why We Recommend It
For those who have window access, this is one of the most reliable and affordable traditional ACs on the market. It’s not fancy, but it works—and that’s what matters during a heatwave.
Best For
Small bedrooms, studios, and apartments with standard window frames.
Pros and Cons
Pros:
- Highly energy efficient
- Very quiet operation
- Trusted brand with good warranty
- Low upfront cost
Cons:
- Requires window installation
- No smart features or remote
Customer Reviews
Customer Review: “I really like this unit. It has efficient heating and cooling. It’s easy to install. Quiet and does a good job. The heat pump will shut off when it’s below 41 f. I have found one exception to this. If place in a window over a south facing concrete porch. The sun is lower in the shy in winter. This a”
Customer Review: “This is not the top-rated U-shaped Midea model, which is in low supply, one of which I bought in 2023.(So I now have both the U-shaped and the traditionally shaped 12,000 BTU Midea AC window units.)Background: 2 years ago I installed the U-shaped model in the kitchen of our 1910 Sears & Roebuck kit “
7. Mini Portable Air Cooler with 1250ml Tank, 3 Speeds, and 1-3 Hour Timer
This compact 4-in-1 cooler packs a punch for its size. With a 1250ml tank, 3 fan speeds, and nano-mist technology, it’s perfect for personal cooling at your desk or bedside.
Key Features That Stand Out
- ✓ 4-in-1: fan, humidifier, cooler, and air purifier
- ✓ 1250ml water tank for extended use
- ✓ 3 adjustable mist levels and fan speeds
- ✓ 1–3 hour timer for energy savings
- ✓ Compact and lightweight
Why We Recommend It
It’s not the most powerful unit, but for the price and size, it delivers excellent personal cooling. We especially liked the nano-mist feature, which feels refreshing without soaking your desk.
Best For
Desk use, small personal spaces, and travel-friendly cooling.
Pros and Cons
Pros:
- Affordable and portable
- Multiple mist and speed settings
- Timer helps save energy
- Produces noticeably cool air
Cons:
- Short timer range (max 3 hours)
- Can drip slightly if overfilled
Customer Reviews
Customer Review: “Works very well. Very cold air. Drips a little in front from mist but just put a facecloth in front of it…. Bought 5 of them…”
Customer Review: “Perfect for my nightstand. I use it every night and love how quiet it is. The mist is strong but not overwhelming.”
Complete Buying Guide for Air Conditioners
Essential Factors We Consider
When testing air conditioners, we evaluate cooling power, noise level, energy efficiency, ease of use, and value for money. For portable and windowless units, we also consider tank size, oscillation range, and whether they require installation. In humid climates, evaporative coolers are less effective, so we prioritize models with strong fan modes. For quiet operation, we look for units under 40dB—ideal for bedrooms and offices.
Budget Planning
Air conditioners range from under $50 for mini fans to over $300 for high-capacity portable units. Set a budget based on your needs: under $100 for personal or desk cooling, $100–$200 for small-room evaporative coolers, and $200+ for powerful windowless or window units. Remember to factor in long-term energy costs—models with high CEER ratings save money over time.
Final Thoughts
Choosing the right air conditioner depends on your space, climate, and lifestyle. Windowless and portable units offer flexibility for renters, while traditional window ACs provide reliable cooling for permanent setups. Always check room size compatibility and noise levels before buying.
Frequently Asked Questions
Q: Do portable air conditioners need to be vented?
A: Traditional portable ACs with compressors require venting through a window or wall. However, the evaporative coolers reviewed here are windowless and do not need venting—they use water and fans to cool air naturally.
Q: Are evaporative coolers effective in humid climates?
A: Not really. Evaporative coolers work best in dry climates where humidity is low. In humid areas, they add moisture to the air without significantly lowering temperature. For humid regions, consider a compressor-based window or portable AC.
Q: How often do I need to refill the water tank?
A: It depends on the tank size and usage. Most portable coolers last 6–14 hours on a single fill. Larger tanks (like the 2.1-gallon model) require fewer refills, while mini units may need topping up every few hours.
Q: Can I leave an air conditioner on overnight?
A: Yes, especially models with timers and auto-shutoff features. Units like the Portable Air Conditioner with 1700ml Tank are designed for safe overnight use with low-water protection and quiet operation.
Q: What’s the difference between BTU and CEER?
A: BTU measures cooling power—higher BTU = more cooling. CEER (Combined Energy Efficiency Ratio) measures efficiency—higher CEER = lower energy bills. Look for a balance of both when choosing a window AC.
Still unsure which air conditioner is right for you? Our top picks cover every need—from budget-friendly coolers to powerful windowless units. Click any “Check Price” button above to compare current deals on Amazon and beat the heat with confidence this summer!