10 Best Ultrasonic Humidifiers with Adjustable Mist Outputs
for March 2023

The HoMedics TotalComfort Deluxe Ultrasonic Humidifier has two tanks, each with its own mist output setting (cool and warm), plus a cool mist setting. The tanks are smaller than the Panasonic TH-55WF53K, but they lasted 2.5 hours in our tests (it can supercharge them for about 4.5 hours on high power). Compared with our previous pick, the Honeywell HCM-225W, the TotalComfort has a more powerful humidifier and larger tanks. It also adds aromatherapy and demineralization cartridges. But it doesn't include a remote or an auto shutoff feature, and the controls are difficult to operate. On the topic of controls, the TotalComfort has a dial that manipulates the mist output, and an LED light that changes color based on the current mode. It's somewhat reminiscent of the old clock radios, which weren't easy to use either, but HoMedics has simplified the process slightly by making the mist output settings more precise. The humidifier can also run on a timer. Both the humidifier and some of the light settings operate off battery power, but the main control unit needs to be plugged into an AC outlet. If you use the humidifier in a bedroom and/or don't spend a lot of time standing over a tank filling it, the Digital 4.1 Surround Sound Speaker System with Built-in Bluetooth is a great pairing.

The VAVSEA Ultrasonic Cool Mist Humidifiers deliver a lot of moisture without adding noise. When you place this humidifier near the bed, it'll fill the room with the rejuvenating fragrance of mist. If you're looking for something without a timer or remote control, take a look at our budget pick. But if you're looking for a humidifier that you can control remotely and fill up the whole house, the 5L humidifier is a great choice. It has lots of mist output settings, and you can also adjust the night light, which is a useful feature if you have toddlers, babies, or elderly relatives. The mist comes out pretty evenly, and the humidifier can run for a long time on just a single fill. It's quiet enough that you might not even realize it's running. The only major drawback is that it's not a particularly powerful humidifier. So if you're looking for something that will put moisture into your whole house, including your basement and bedrooms, it might not do the job.

This ultrasonic humidifier is designed for medium-sized rooms, and it lasts longer than most 1-gallon models. It's not as stylish as some of the higher-end models we tested, but it's well built and quiet, and it also has a more attractive, modern look. The unit has a 35-hour run time, and it comes with a remote control for easier operation. The adjustable mist output knob lets you adjust from a cool mist setting to a warm mist setting, and the Holmes humidifier produces more mist than most units we tested.

This humidifier is great for babies of any age, and it is ideal for rooms up to around 450 square feet. It produces a lot of mist and is whisper quiet, which makes it easy to run at night. The settings are super simple, and it features a blue light that turns off when it's been running for a while. The integrated water tank is convenient, though you'll still have to fill it from time to time. The humidifier shuts off automatically when it's low on water, which keeps you safe. We really liked that you could adjust the mist output by picking the level of mist between high, medium, and low.

The 4L Cool Mist Humidifiers are the best that we found for nighttime use. These humidifiers produce a good, efficient amount of mist, and they produce it quietly. The construction is sturdy, and the tanks are easy to refill. All of the humidifiers we tested kept their fill lines full, and all of them had easy to read fill caps. The controls are simple, and the remote is convenient and easy to use. The only drawbacks are that while the tanks have a low water indicator, they require you to unscrew and pull back to access the fill line, which can get frustrating if you have multiple lights running. Also, the tanks are not detachable, so you can't take them to work and carry them with you when you need a humidifier. Acoustics - 4L humidifiers are quiet, with noise level of 40dB, about as low as the noise of a TV or laptop. Also, the humidifiers do not have fan, so you do not hear the noise of fan.

This is one of the best humidifiers if you're looking for one that works well in different rooms, especially if you have a large home. The auto-shutoff feature and versatility make it a good pick even if you just use it in a small bedroom. The auto-shutoff feature can be annoying—for some reason, it only shuts off when the tank is almost empty, not when it's close to empty. Also, the humidifier doesn't automatically shut off if there's no water, so it's a good idea to fill it up before going to sleep. The 360-degree swivel nozzle makes it easy to adjust how much mist comes out and where it flows. The mist is soothing, and our testers noted that the humidifier didn't release a damp, sticky residue like other cool-mist humidifiers. The downside: The reservoir can get messy during refills, and this humidifier doesn't have a timer or nightlight, so you might find it hard to fall asleep if it goes off.

If you are looking for a humidifier, this 4L cool mist humidifier is the one. It is pretty quiet, the mist spray is decent, and the large tank holds enough water to last a whole day. This humidifier is suitable for rooms that are up to 550 square feet. It does make a lot of noise when it runs, however, which could be a problem for a bedroom. It is, however, good for a nursery or kids' room. It also has a 12 hour timer. The assembly is easy, and the unit is really easy to set up. It is very lightweight and small. This humidifier also has an automatic shut-off feature, so you don't have to worry about running out of water in the middle of the night. Overall, this humidifier is suitable for your bedroom or nursery. It also comes with a cleaning water filter.

This ultrasonic humidifier is one of the best on the market and lives up to its promises. It is lightweight, easy to use, and easy to set up. We liked the soothing blue night light and the fact that it has a water tank indicator light to warn you when it needs to be refilled. It also has a low-temp setting that shuts off automatically to help prevent the unit from burning out. The only con we have was the issue of our humidistat getting water clogged in it after only a few days of use. It should literally be 30 seconds of your time to hook up the humidifier to a regular faucet to clean it. After that, it performed flawlessly for us for about a month.

Despite the humidifier's 2.2-liter capacity and long tank life, you can only fill it with water once, so refilling it overnight can be a hassle. Water leaking out your ears is a pretty rare occurrence, but it can happen if the humidifier is knocked over during the night. We also found it unpleasant to have to tip the humidifier back and forth to fill it. The device also comes with a small brush and reservoir cap, but its hard plastic handle makes it less comfortable to hold. The unit would get quite warm after running overnight, but it cools off quickly when it starts to run during the day. The HemingWeigh Ultrasonic Humidifier fills a space quickly and humidifies it evenly. It also produces a small amount of noise, which is about the same as a whisper. Our only major complaint is the unit's inability to run all night on a single tank, but it's a problem we've encountered with many other humidifiers, so it's understandable. Since each tank holds 2.2 liters, one tank can last you a while, and the unit has an automatic shutoff, so there's little chance of it running dry in the middle of the night.

The 4L Top Fill Humidifier is an ultra-quiet, ultra-convenient humidifier that keeps your office or bedroom at a comfortable humidity level. The tank holds 4 liters of water, which, according to our tests, should last more than 40 hours. The tank is top-fill and requires no messing, just fill up the reservoir with ease using the integrated spout. This humidifier also coupled with the 12-hour timer, it will turn off the humidifier automatically when it reaches the set time, and the HV-LL-01 is a reliable humidifier that will provide you the comfortable air environment for the long run.