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AquaOasis Cool Mist Review

This is an affordable humidifier that offers decent performance but is quite challenging to keep clean
AquaOasis Cool Mist
Credit: AquaOasis
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Price:   $50 List | $39.95 at Amazon
Pros:  Low operation costs, excellent output
Cons:  Difficult to clean, difficult to fill
Manufacturer:   Aqua Oasis
By Austin Palmer and Buck Yedor  ⋅  Apr 21, 2022
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53
OVERALL
SCORE


RANKED
#9 of 12
  • Humidifying Performance - 35% 7.4
  • Ease of Cleaning - 35% 2.5
  • Operating Cost - 15% 8.0
  • User Friendliness - 15% 4.5

Our Verdict

The AquaOasis Cool Mist humidifier is a mid-level performer offered at a low price point. It is reasonably effective at humidifying and has a relatively low overall operating cost for a small household appliance. We enjoyed the simple control dial that lets you set the humidity levels to varying degrees of strength. Still, we found that the shape of the device and the small opening make it extremely difficult to keep clean and refill with water. This is a cost-effective and affordable option, but there are better-performing models at a similar price point.

Editor's Note: We updated this review for the AquaOasis Cool Mist on April 21, 2022, with an unbiased take on cost to performance ratio's for all products and how they compare to one another.

Compare to Similar Products

 
AquaOasis Cool Mist
Awards  Best Buy Award Best Buy Award   
Price $50 List
$39.95 at Amazon
$40 List
$34.77 at Amazon
$40 List
$42.49 at Amazon
$50 ListCheck Price at Amazon
Overall Score Sort Icon
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Pros Low operation costs, excellent outputInexpensive, easy to clean, easy to useExceptional output, low lifetime operating costsEasy cleaning, decent overall performanceGood humidifying performance
Cons Difficult to clean, difficult to fillNot the most powerful, no advanced featuresConfusing user interface, prolonged cleaning processLimited settings, so-so output, no standout featureSomewhat difficult to clean
Bottom Line This is an affordable humidifier that offers decent performance but is quite challenging to keep cleanThe perfect budget model for smaller rooms (less than 150 square feet)With excellent performance ratings and low operating costs, this is one of our favorite modelsThis model is a decent choice for its budget-friendly price point and performs moderately wellGood for mid-sized bedrooms in arid climates, as long as you don't mind a little cleaning effort
Rating Categories AquaOasis Cool Mist Honeywell HUL520B Levoit Classic 200 Vicks Filter Free C... Everlasting Comfort...
Humidifying Performance (35%)
7.4
5.0
8.0
5.0
6.8
Ease of Cleaning (35%)
2.5
8.0
6.5
7.5
5.0
Operating Cost (15%)
8.0
10.0
8.0
8.0
8.0
User Friendliness (15%)
4.5
7.5
6.0
6.0
5.5
Specs AquaOasis Cool Mist Honeywell HUL520B Levoit Classic 200 Vicks Filter Free C... Everlasting Comfort...
Weight 1.4 lbs 3.0 lbs 3.5 lbs 4.0 Ibs 3.3 lbs
Dimensions 10" x 8.5" x 6.1" 8.5" x 8.5" x 9.5" 13.8" x 7.8" x 5.8" 10.87" x 9.45" x 13.46" 13.3" x 11.4" x 6.8"
Tank Capacity 0.6 gallons 0.5 gallons 1.1 gallons 0.5 gallons 1.6 gallons
Humidification Technology Ultrasonic Ultrasonic Ultrasonic Ultrasonic Ultrasonic
Estimated Lifetime Cost $99 $56 $99 $89 $98
Estimated Annual Electricity Usage 87.6 kWh 43.8 kWh 87.6 kWh 65.7 kWh 65.7 kWh

Our Analysis and Test Results

To get a clear understanding of the AquaOasis Cool Mist's performance, we submitted it to a series of standardized tests that let us compare it to other humidifiers in the most unbiased way possible. In our analysis, we considered metrics like humidifying performance, overall user-friendliness, ease of cleaning, and long-term operating costs. Read below to see the details of how it performed.

Performance Comparison


AquaOasis Cool Mist humidifier - the aquaoasis has excellent output and low operating costs but is...
The AquaOasis has excellent output and low operating costs but is hard to clean.
Credit: Laura Casner

Humidifying Performance


The AquaOasis Cool Mist had mixed results in this metric. Its overall output was good. Over 3 hours, it brought a room from 30.5% humidity up 59.2% humidity, a 94% change. Its consistency, however, was subpar. As the humidity rose, the humidity levels fluctuated highly but ultimately ended up where they were supposed to be.

AquaOasis Cool Mist humidifier - the control dial lets you fine-tune your humidity levels.
The control dial lets you fine-tune your humidity levels.
Credit: Laura Casner

Ease of Cleaning


Humidifiers are the perfect breeding ground for mold. Being able to clean them properly is essential. Unlike other models we tested, the design of this machine makes it almost impossible to keep it clean. The issues primarily stem from the tiny hole that gives you access to the machine's interior. It is incredibly difficult to get a cleaning brush into the device to scrub out mold. Compounding this is the way the interior was molded. There are difficult ridges to navigate and sharp edges that give mold and scum many places to hide.

AquaOasis Cool Mist humidifier - the sharp interior edges of the aquaoasis make cleaning mold...
The sharp interior edges of the AquaOasis make cleaning mold difficult.
Credit: Laura Casner

The included instructions call for a weekly water change, but we found this to be inadequate during our testing. We found that pink grime would start building up within two days if we didn't change the water daily.

User Friendliness


One of our favorite features about the AquaOasis Cool Mist is the easy-to-operate control dial. Turning it clockwise slowly ramps up the humidity levels. Many machines have specific modes, i.e., low, medium, high, but this dial lets you fine-tune your humidity levels to where you want them.

AquaOasis Cool Mist humidifier - the small handle on top makes moving the device quick and easy.
The small handle on top makes moving the device quick and easy.
Credit: Laura Casner

Stemming from the same problem the device has with cleaning, the small hole that gives you access to the interior makes it challenging to fill the unit with water. The shape of the machine, in general, is unwieldy and hard to hold, adding even further difficulties to the filling process.

Operating Cost


Assuming 12 hours of use per day, it costs about $10 a year to run the AquaOasis Cool Mist. This is one of the more cost-effective options of any of the devices we tested. When tacked on to its fairly low MSRP, the overall lifespan cost of this model is quite reasonable.

AquaOasis Cool Mist humidifier - the small hole makes the machine difficult to fill and even more...
The small hole makes the machine difficult to fill and even more difficult to clean.
Credit: Laura Casner

Should You Buy the AquaOasis Cool Mist?


The AquaOasis Cool Mist is incredibly affordable to operate but has serious issues with its ability to keep clean. The small access hole makes it difficult to get a cleaning brush inside, and the molded plastic doesn't make it any easier to scrub off mold when you do. The control dial lets you fine-tune your humidity levels, and the overall output is above average. All in all, this machine is affordable and functional. But given how difficult it is to keep clean, it is not one of the top recommendations.

What Other Humidifiers Should You Consider?


While the MSRP and average operating costs are low, we didn't find the AquaOasis Cool Mist to offer a particularly good value compared to other humidifiers we tested. Relative to other small humidifiers, the Honeywell HUL520B is easier to operate and maintain. If you need to step up to a mid-sized humidifier, our choice for value is the Levoit Classic 200.

Austin Palmer and Buck Yedor

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