The Honeywell HUL520 is a compact ultrasonic humidifier with a small footprint and an inexpensive price. This unit has a simple dial with continuous mist output settings. We like that this unit is very easy to clean, has a large tank opening and handle for carrying, and can be cleaned with few if any special tools. This product has a smaller capacity than most of the competition, but it will last overnight on high volume and the frequent refilling will help you keep your eye on potential mold growth or mineral deposits. The HUL is louder than most of the ultrasonic competition but is still relatively silent at high levels. While this unit wouldn't be a good choice for larger spaces and it can't be used for days without refilling, it does get the job done for a very friendly price most families can afford.
Honeywell HUL520 Review
Pros: Price, easy to clean
Cons: Small capacity, limited features, louder
Manufacturer: Honeywell
The Skinny
Compare to Similar Products
 This Product
Honeywell HUL520 | |||||
| Awards |  |  | |  | |
| Price | $30.00 List $29.99 at Amazon | $160.00 List $159.99 at Amazon | $90.00 List | $50.00 List $44.99 at Amazon - 10% off | $110.00 List $97.21 at Amazon - 12% off |
Overall Score  |
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| Star Rating | |||||
| Pros | Price, easy to clean | Very effective, high quality, limited parts, fill from the top | Easy to use, programmable features, humidistat | Cute, easy to clean base, filterless, large tank | Large tank capacity, programmable, can set on the floor |
| Cons | Small capacity, limited features, louder | Expensive, louder, some parts are hard to clean | Somewhat louder, price | Mist output varies, larger footprint | Less effective, higher price |
| Bottom Line | Budget-friendly compact choice with basic features and super easy to clean parts | Highly effective option that is easy to use but some parts are hard to clean and it is expensive | Easy to use option with a digital interface and humidistat but it costs more than average | Cutest package with high mist output and a family-friendly price | Lots of programmable bells and whistles with a large tank makes it great for larger rooms |
| Rating Categories | Honeywell HUL520 | Boneco U300 | PureGuardian H1250 | Crane Adorable | Air Innovations... |
| Ease Of Cleaning (40%) | |||||
| Effectiveness (30%) | |||||
| Noise (20%) | |||||
| Ease Of Use (10%) | |||||
| Specs | Honeywell HUL520 | Boneco U300 | PureGuardian H1250 | Crane Adorable | Air Innovations... |
| Mist Type | Cool | Cool | Cool | Cool | Cool |
| Technology | Ultrasonic | Ultrasonic | Ultrasonic | Ultrasonic | Ultrasonic |
| Tank Capacity | 0.5 gal | 1.3 gal | 1.5 gal | 1 gal | 1.6 gal |
| Visible Water Reservoir | Yes | Yes | Yes | Yes | Yes |
| Room Humidification Area (Sq Ft) | Small Rooms | 540 sf | Medium Rooms | 250 sf | 700 sf |
| Max Run Time | Up To 20 hrs | Not Specified | Up To 100 hrs | Up To 24 hrs | Up To 100 hrs |
| Humidity Output Control | Variable Mist Control | Variable Mist Control | Variable Mist Control Humidistat | Variable Mist Control | Variable Mist Control Humidistat |
| Demineralization Cartridge/Filter | No | Yes | No | No | Yes |
| Night Light | No | No | Yes | No | No |
| Empty Tank Auto-Shut Off | Yes | Yes | Yes | Yes | Yes |
| Dimensions (BGL) | 8.1"W x 9"H x 8.1"L | 12.3"W x 12.7"H x 6.6"L | 10"W x 12.7"H x 7.5"L | 9.5"W x 12"H x 9.5"L | 11"W x 18"H x 8"L |
| Empty Weight (BGL) | 2.6 lbs | 6.5 lbs | 3.7 lbs | 4 lbs | 4.1 lbs |
| Max Operation Noise Level in dB (BGL) | 46 db | 47 db | 43 db | >40 db | 42 db |
Our Analysis and Test Results
Honeywell is part of the Helen of Troy group. They are known for personal comfort products like heating pads, fans, heaters, air purifiers, and humidifiers. What you may not know is Honeywell also has connections in aerospace, oil, and gas industries. Honeywell is a Fortune 500 company.
Performance Comparison
Ease of Cleaning
The HUL520 is one of the most accessible options to clean.
This unit has a tank with a wide opening that most hands will fit in. The container is small enough to reach all sides to wipe clean without the need for a special tool. You will need a bottle brush or thinner washcloth to clean the mist tube, but the length is short, so any brush should be able to do the job. The base is also easy to keep clean, with only one spot that requires extra attention.
Effectiveness
This smaller Honeywell is not the most effective option in the competition for mist creations. This lower mist creation may or may not be a concern depending on your goals and the size of the space you want to humidify.
This Honeywell stars out strong with a similar output to the competition, but over time the other products increase the ambient humidity more than the HUL. At the one hour mark, about half of the competitors had produced more moisture than the HUL520.
Noise
This Honeywell is the second loudest ultrasonic unit in the review. The evaporative humidifier is the loudest with a decibel reading of 60.
With a decibel reading of 46 dB, only it isn't loud, and it is unlikely to keep anyone awake.
Ease of Use
This Honeywell has a continuous mist dial to control output levels. However, it is not programmable and lacks features that could potentially make life with a humidifier easier, which impacted its ease of use score.
This unit has continuous settings and a simple "plug and play" design. The tank has a handle for carrying, and it can sit in the sink without help for filling.
The tank opening is large, which makes it easy to fill even in a bathroom sink. The tank is easy to open and fits on the base without a problem. The base is small, making this a good option if space is limited. While the tank is small, it will hold enough water to create mist all night even on the highest setting.
Manufacturer Video
— Juliet Spurrier, MD and Bob Wofford