8 Best Ultrasonic Humidifiers to Raise Indoor Humidity Levels

I t is impossible to avoid allergies, the flu, or a seasonal cold, but there are plenty of things we can do to alleviate the symptoms. As our house is our refugee in these cases, we can make sure that it is a safe environment, where the air is clean, the temperature is comfortable, and low humidity doesn’t mess with our skin and breathing system.

Needless to say, in this period when we are confronted with a pandemic, indoor conditions are all the more important. Creating a safe habitat in our homes is now more imperious than ever, and since dry air affects immunity and increases the viral spread, enjoying proper moisture levels indoors is a must these days.

One solution could be to set up a whole-house humidifier, which can provide moisture for your entire family and create an even humidity level all over your living space. Nevertheless, these units are more expensive and may not be suitable if you are looking to increase comfort in a single room. Ultrasonic humidifiers, on the other hand, cost less, are cheaper to run, and can be easily carried around the house. They are perfect for treating common breathing issues like asthma or congestion, and some of them offer aromatherapy options. Plus, they have a sleek design that will match every house.

Our research focused on finding the best models on the market, and we analyzed over 150 before choosing only 10 as our favorites. Three experts have been interviewed for this article, and we considered their expertise when ranking the products. So, take a look at our reviews. You will find pros, cons, and an honest verdict, which, we hope, will help you decide.

Top 8 Ultrasonic Humidifiers Compared

Photo	Product	Mist Type	Room Coverage	Water Tank Capacity	Maximum Runtime	Mist Output	Speed Settings	Price
Best Overall	1. LEVOIT LV600HH	Warm & Cool	753 sq. ft.	1.5 gallons	36 hours	500 mL/h	3	Check Price at Amazon
Best for Bedrooms	2. Hupro Premium Ultrasonic Cool & Warm Mist 4L	Warm & Cool	500 sq. ft.	1 gallon	30 hours	133 mL/h	5	Check Price at Amazon
Editor’s Choice	3. Everlasting Comfort Humidifiers for Bedroom 6L	Cool	500 sq. ft.	1.6 gallons	50 hours	270 mL/h	Variable	Check Price at Amazon
Best for Large Rooms	4. Crane EE-5301	Cool	500 sq. ft.	1 gallon	24 hours	250 mL/h	Variable	Check Price at Amazon
	5. AquaOasis AO-101	Cool	400 sq. ft.	0.58 gallons	24 hours	92 mL/h	7
	6. Sunpentown SPT SU-4010	Warm & Cool	500 sq. ft.	1 gallon	10 hours on high/ 24 hours on low	Warm: 400 mL/h; Cool: 330 mL/h	Variable	Check Price at Amazon
	7. Honeywell HUL570B	Cool	300 sq. ft.	1.25 gallons	36 hours	130 mL/h	Variable	Check Price at Amazon
	8. Pure Enrichment MistAire PEHUMIDIF	Cool	250 sq. ft.	0.39 gallons	16 hours	150 mL/h	2	Check Price at Amazon

1. LEVOIT LV600HH

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Summary: We recommend it for large rooms, where it can work its magic and fill the air with soothing mist and aromas. Its digital panel and remote make it easy to control, while the smart functions allow it to run independently for days. Furthermore, as it is quiet and comes with a Sleep mode, you can use it in a bedroom or baby room as it won’t intrude at all.

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There’s more than looks at this Levoit model, but we must admit that its elegant design caught our eye. A crystal-clear reservoir filled with water and placed on a sleek white structure that integrates a beautiful blue-lighted digital panel cannot be overlooked. Although it is large, everybody will love it on their nightstand, especially as it is super-quiet as well, with a maximum noise level of only 36 decibels. Furthermore, it offers incredible versatility, with 2 mist options and multiple settings that can be easily controlled from distance.

High Humidification Rate

No matter if you use it during the winter to relieve cold symptoms with the soothing warm mist or during the summer, when low humidity causes the skin to dry and only a good dose of cool mist can bring optimal freshness, it will perform its best. Buyers pick it for its ability to create a comfortable atmosphere, which is easy to obtain due to the following features:

• Large area coverage - it is recommended for rooms measuring up to 753 square feet where it can deliver an outstanding mist output of 500 mL per hour
  
  See here other humidifiers for large rooms if you want your pick of moisture amplifying units that cover wider spaces.

• Extra-large water reservoir - can hold up to 1.5 gallons of water
• Excellent run time - at the lowest speed it can go on for up to 36 hours

It offers an aromatherapy tray where you can place essential oils and fill the room with incredible aromas of eucalyptus, mint, lavender, and many others, it all depends on your taste. Thus, it keeps the oils far from the water recipient and the internal mechanism, as they can affect its performance and reduce its lifespan. Not to mention that the water tank is easier to clean this way, although the large bottom opening surely helps a lot.

Digital Control Panel

As we have already mentioned, this is a smart unit that can do more than release mist into the air. Everything can be controlled and adjusted, starting with fan speed which can variate between low, medium, and high. Nevertheless, the smart functions are the ones for which you pay the extra price, so let’s take a look at what it can do:

• Auto mode - works with a digital humidistat that collects humidity data in the room and displays it on the LED monitor. Thus, the unit knows when it’s time to adjust the fan, so it can reach the value you have set
• Sleep mode - although it lacks a dedicated button, it can be set by keeping the auto button pressed until the lights turn off
• Timer - can be set to shut down the operations after 1 to 12 hours
• Remote control - incorporates all the settings and allows for easy control from a distance

The 360 degrees nozzle allows you to direct the mist output towards the corners that need more humidification. Additionally, for safety purposes, it has been provided with an auto shut-off function that activates when the water tank is empty. The power consumption rate is rather high at 280 watts, but you need to consider that this value is reached only at the highest speed, and the unit should run continuously for the energy costs to increase considerably.

Easy Maintenance

The water tank is easy to remove and place under running water for filling. The opening is large and allows for periodical cleaning and maintenance. Plus, it doesn’t require a filter that would have required extra care and changing every few months. The warranty is great as well, with 2 years being offered for repairs. Not to mention that it is produced by a very reliable brand that offers excellent customer support and is known to stand behind its promises.

Performance Test Feedback

LEVOIT LV600HH Specifications Sheet
Mist Type: Warm & Cool	Area Coverage: 753 sq. ft.
Water Tank Capacity: 1.5 gallons	Runtime On a Full Tank: 36 hours
Mist Output: 500 mL/h	Speed Settings: 3
Noise Level: Less than 36 dB	Power Rating: 280W
Automatic Mode:	Sleep Mode:
Automatic Shut-Off:	Aromatherapy Function:
Timer: 1-12H	360-Degree Nozzle:
Controls: Digital	Warranty: 2 years

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2. Hupro Premium Ultrasonic Cool & Warm Mist 4L

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Summary: The stainless steel exterior makes it a sleep addition to any room, while the beautiful digital panel with LED screen that displays the relative humidity brings an air con contemporaneity. It is smart and powerful, but quiet at the same time, exactly how the best humidifier should be. Not to mention that it is extremely safe to use since it comes with a prompt auto shut-off function.

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It can be difficult to find a unit that can provide optimal humidification for a large bedroom without producing a lot of noise. Most options either are quiet only at the lowest speed level and incapable to maintain their performance through the night or were designed for tight spaces. Nonetheless, few seem to reach this model’s efficiency, which is not only capable to cover rooms measuring up to 500 square feet, while keeping the noise under 30 dB, even when it is running at its maximum capacity. There are quite a few humidifiers that flaunt the same area coverage, but if you want a cheaper alternative for this Hupro model, we would recommend the Crane Adorables EE-3191 since it is significantly quieter.

It is highly customizable, as it features a high-end digital panel, with 5 speed settings and 2 misting capabilities. Besides that, it includes an accurate humidistat and can be set on auto mode, which means that it can independently determine relative humidity and adjust the fan to reach your desired value.

The premium features continue with a sleep mode that turns off or dims all of the lights and sounds with a simple press of a button. It comes with a tiny but sleek remote control that includes all the functions provided by the control panel. Thus, you can set the timer, directly from the comfort of your couch. You can select mist type – warm or cool – according to your preferences or activate one of the 5 fan speeds. The power consumption rate ranges between 30 watts in cold mist mode and 110 watts in warm mist mode, which are decent values, especially when you consider what it has to offer. Furthermore, you will benefit from superior water filtration, as it offers 3 purifying barriers, namely a ceramic filter, an ionizer, and a lamp, each of them having a specific role in cleaning the water. Thus, you won’t have to deal with bacteria, mineral residues, or unpleasant odors.

The mist output rate is 133 mL per hour, which we must admit isn’t the highest, but most customers were pleased by its performance, especially by the large-capacity 1-gallon reservoir that can last for up to 30 hours. Another excellent feature that everyone appreciates is the aroma tray that allows the use of essential oils without voiding the 1-year warranty. Plus, in terms of maintenance, there’s nothing to criticize, as it features a wide top opening that offers excellent access for cleaning and makes it easy to refill.

Hupro Premium Ultrasonic Cool & Warm Mist 4L Specifications Sheet
Mist Type: Warm & Cool	Area Coverage: 500 sq. ft.
Water Tank Capacity: 1 gallon	Runtime On a Full Tank: 30 hours
Mist Output: 133 mL/h	Speed Settings: 5
Noise Level: 30 dB	Power Rating: Warm: 110W; Cool: 30W
Automatic Mode:	Sleep Mode:
Automatic Shut-Off:	Aromatherapy Function:
Timer: 12H	360-Degree Nozzle:
Controls: Digital	Warranty: 1 year

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3. Everlasting Comfort Humidifiers for Bedroom 6L

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Summary: Most customers who have tried it agree that it produces a very fine mist that spreads into the air without wetting the furniture and upholstery. Some of its greatest highlights include the aromatherapy tray and ultra-quiet operation. We must add that it is reasonably priced and highly performant in large rooms with a low power draw rate that makes it a perfect pick if you are careful with your finances.

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Here comes our favorite choice, which impressed us through its elegant design, safety features, and excellent coverage capabilities, all offered at an attractive price that makes it a very popular pick among buyers as well. The high-quality nebulizer produces a very fine mist, while the strong but quiet fan works continuously to spread it in large rooms measuring up to 500 square feet. The mist output rate of 270 mL per hour turns it into a very competitive unit, especially when combined with the extra-large 1.6-gallon water tank. As opposed to the Hupro Premium Ultrasonic Cool & Warm Mist 4L that only lasts 30 hours on a full tank, the Everlasting humidifier can last for up to 6 full nights or 50 hours, so it is probably the most convenient humidifier you could find at this price. Moreover, as it offers a 360-degree nozzle, you can direct the mist output wherever you like in the room and, thus, protect your furniture and upholstery.

It is rated for only 22 watts, a feature that makes it perfect for continuous running. In this case, we can overlook the lack of a timer, especially as it does offer an aromatherapy tray. You pay for one device, but you get both a humidifier and an essential oil dispenser that will fill your house with amazing scents and provide relief during seasonal colds. The mist output can be adjusted by simply turning a knob placed on the front side. Moreover, as night lights often prove to be more of a nag than a source of soothing as they are advertised, especially if you cannot turn them off during the night, it is a good thing that it doesn’t feature one. Therefore, the only thing you may find disturbing is a small led, but, once again, you have the option of facing it toward the wall during the night. On the other hand, the sound is almost imperceptible, so you can rest assured that it won’t interfere with your sleep.

In terms of safety, we should mention the ETL certification, which is a reliable guarantee that it is safe to use and won’t overheat once the water in the reservoir is over. In this case, the auto shut-off function will kick in and power it off. Another excellent feature is the filterless design that allows for easy cleaning and cuts maintenance costs. With hard water, though, it may be difficult to keep the mineral residue from spreading into the air, so you will need to search for a solution. On the other hand, we should mention that it comes with a generous 2-year warranty, and the manufacturer promises to replace the unit if it arrives with manufacturing flaws.

Everlasting Comfort Humidifiers for Bedroom 6L Specifications Sheet
Mist Type: Cool	Area Coverage: 500 sq. ft.
Water Tank Capacity: 1.6 gallons	Runtime On a Full Tank: 50 hours
Mist Output: 270 mL/h	Speed Settings: Variable
Noise Level: Whisper Quiet	Power Rating: 22W
Automatic Mode:	Sleep Mode:
Automatic Shut-Off:	Aromatherapy Function:
Timer:	360-Degree Nozzle:
Controls: Analog dial	Warranty: 2 years

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4. Crane EE-5301

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Summary: This is a great deal if you are looking to provide humidification for a large room but are not willing to spend extra on premium functions. The water level is easy to monitor through the transparent water tank, which is easy to remove as well for easy refilling. Moreover, it is well built and comes with a 1-year warranty, so you can rest assured knowing that it will work perfectly for a very long time.

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If there’s something Crane knows best is to produce reliable humidifiers at very good prices, and this model is the proof. Although it is compact, it can cover large rooms, measuring up to 500 square feet, with an excellent mist output rate of 250 mL per hour. The same stats are seen in another humidifier produced by this brand that we recommend you look into, namely, the Crane Adorables EE-3191 which is perfect for the nursery thanks to its kid-friendly design and whisper-quiet operation.

The reservoir of the EE-5301 is removable and offers a bottom opening for easy fill. It can hold one full gallon of water, which is enough to keep the moisture coming for up to 24 hours. Even if you decide to set it at the highest speed, you won’t need to wake up during the night to do a refill, and you can rest assured that the auto shut-off won’t kick in until morning.

Customers appreciate its clean design and anti-microbial construction which makes it a long-term investment. The special material prevents bacteria growth, which, when it comes to other models, is almost impossible to control and makes them unusable after a few months. Although it was designed to run without a filter, you can choose to add one, especially if you live in an area where the water is particularly hard. Thus, you will prevent mineral deposits as well and keep the beautiful blue transparent water reservoir crystal clear.

It is a practical device that doesn’t offer smart functions. You won’t find a LED screen, a humidistat, or digital controls. Instead, it offers an analog dial and this is enough for you to power it on and off and set the desired mist level. Nevertheless, we must admit that a timer would have made it better, and an aromatherapy option, divine. The whisper-quiet run compensates though for its lack of functions, and the 45 watts power consumption rate is low enough not to overcharge your bills, even if you run it continuously. Furthermore, you can rotate the mist nozzle in any direction you wish and thus provide customized humidification, keeping moisture away from your pets, furniture, or upholstery.

Crane EE-5301 Specifications Sheet
Mist Type: Cool	Area Coverage: 500 sq. ft.
Water Tank Capacity: 1 gallon	Runtime On a Full Tank: 24 hours
Mist Output: 250 mL/h	Speed Settings: Variable
Noise Level: Whisper quiet	Power Rating: 45W
Automatic Mode:	Sleep Mode:
Automatic Shut-Off:	Aromatherapy Function:
Timer:	360-Degree Nozzle:
Controls: Analog dial	Warranty: 1 year

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5. AquaOasis AO-101

Summary: If you’re looking for a good deal, the AquaOasis is the product we recommend. Aside from the low asking price, it is a filter-free product. This means that there are no expenses related to upkeep in the long run. Additionally, it fares well when it comes to moisture increase thanks to its almost 100 mL/h output.

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Just because you don’t have a lot of money available for buying a humidifier doesn’t mean that you have to settle for a product that is not on par with the highest standards. While simplistic in its design, the AquaOasis matches the performance of the other top-tier products we feature in our top. It does output only 92 milliliters of moisture per hour to humidify your dry indoor air, but it will provide the same results that some of our other more expensive products provide despite the slower pace.

The tank can hold a maximum of 0.58 gallons of water max. What we weren’t very pleased with is that the water tank is a bottom-fill model, so it was a bit difficult to refill. There is a debatable perk to consider with this product, namely that it’s a filter-free humidifier. Sure, this implies lower upkeep costs since you won’t have to replace filters down the road. However, it means that you have to use only distilled and filtered water when you refill the tank. Otherwise, the mist released into the air might contain impurities that you would be at risk of inhaling.

When the tank runs out of water, the small device shuts off to prevent damage, a standard feature that most humidifiers come with. It has a 360-degree rotating nozzle that you can use to direct the mist flow where you prefer in the room. Best of all, the product is backed against defects for a lifetime, which shows how much the manufacturer trusts its quality and durability.

AquaOasis AO-101 Specifications Sheet
Mist Type: Cool	Area Coverage: 400 sq. ft.
Water Tank Capacity: 0.58 gallon	Runtime On a Full Tank: 24 hours
Mist Output: 92 mL/h	Speed Settings: 7
Noise Level: 35 dB	Power Rating: 25W
Automatic Mode:	Sleep Mode:
Automatic Shut-Off:	Aromatherapy Function:
Timer:	360-Degree Nozzle:
Controls: Dial	Warranty: Lifetime

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6. Sunpentown SPT SU-4010

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Summary: You won’t find any fancy functions in this unit, but when it comes to performance, it is unbeatable. A large reservoir, two adjustable nozzles, and a strong nebulizer that can deliver both warm and cool mist make it popular among buyers. Moreover, the ion exchange filter is nothing but a wonderful addition that will solve hard water problems and provide safe humidification.

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If you live in an area with hard water, you have probably noticed the effect produced by mineral residues on your appliances. The humidifier is no exception, therefore you should look for one with great filtering capabilities like this model from Sunpentown, which features an ion exchange filter, specially designed to capture magnesium and calcium residues and prevent them from spreading into the air. These minerals can also deposit on the internal components of the device and reduce its performance and lifespan, so you should replace the filter periodically to avoid this situation.

Regarding its design, it isn’t the sleekest on the market. In fact, it looks more like a medical device, but it compensates through performance and convenience. First of all, it produces two types of mist, warm and cool, therefore it is more versatile than most models that come at this price, which usually offer a single mist type. Secondly, the water tank is very generous as it can hold 1 gallon of water, enough to provide excellent humidification for up to 24h in a large room measuring 500 square feet. It is equipped with 2 nozzles that rotate 360 degrees, so you can direct the mist in 2 different parts of the room, and, thus, efficiently cover a larger surface. Similar from this point of view but cheaper is the Honeywell HUL570B, so if you want even moisture spreading, you should also consider this alternative. Last but not least, we should mention that 2 analog dials are available for easy speed adjustment and mist type selection.

The mist output is highly generous, reaching 400 mL/h for warm mist and up to 300 mL/h for cool mist. Plus, we found it to be silent and soothing at night as the lights are dim and can be faced towards a wall due to the adjustable nozzles. Plus, the power consumption rate is decent for a unit that can release warm mist, with a maximum of 80 watts. If you select cool mist, you can considerably reduce costs, as, in this case, it will only consume 30 watts. And with a 1-year warranty, you can consider yourself covered against eventual manufacturing flows or mishaps.

Sunpentown SPT SU-4010 Specifications Sheet
Mist Type: Warm & Cool	Area Coverage: 500 sq. ft.
Water Tank Capacity: 1 gallon	Runtime On a Full Tank: 10 hours on high/ 24 hours on low
Mist Output: Warm: 400 mL/h; Cool: 330 mL/h	Speed Settings: Variable
Noise Level: Low	Power Rating: Warm: 80W; Cool: 30W
Automatic Mode:	Sleep Mode:
Automatic Shut-Off:	Aromatherapy Function:
Timer:	360-Degree Nozzle:
Controls: Analog dial	Warranty: 1 year

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7. Honeywell HUL570B

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Summary: We loved the cool mist that visibly spreads into the air producing a soothing environment. The quantity produced is generous and will easily cover a medium bedroom or living room. Furthermore, the large water reservoir is very convenient, not only because it is easy to fill but because it can last for almost 2 days if the unit is used at the lowest speed.

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It is produced by Honeywell, so we’ve expected quality and high room coverage, and this unit managed to deliver them. Provided with a durable fan and a top-notch nebulizer that vibrates at high frequency to produce ultra-fine mist, it can ensure proper humidification for rooms measuring up to 300 sq ft. The cool mist is visible and can be adjusted by rotating an analog dial until the output reaches a maximum of 133 mL/h. The water recipient is generous, with a capacity of 1.25 gallons, and can last for up to 36 hours if the humidifier is set at the lowest speed. We must agree that, compared with other models, this is an excellent run time that will allow you to do less frequent refills.

The mist nozzle can be rotated, although not to 360 degrees but to 180 degrees. This means that in some cases you will need to turn the humidifier to direct moisture in the desired spot, an operation that is not that difficult to execute, as it is pretty lightweight, even when filled with water. Regarding energy costs, all we can say is that you can safely run it constantly, as it only draws 20 watts, therefore it won’t overcharge your power bills. Moreover, you won’t have to deal with repair costs for up to 2 years from the date of purchase, as the manufacturer promises to provide parts and labor.

While a filterless unit is very convenient and cheaper to run, it can prove unsafe if you use it with tap water, as the mineral residues tend to spread with the mist and can be easily inhaled. Honeywell HUL570B works well without a filter, as long as you use distilled water, but if you are planning on filling it with tap water, we recommend using the optional demineralization cartridge, especially if the water is hard. Plus, you can easily fill the water tank, either by pouring water straight into the unit or by removing it and placing it in a sink. The top opening is large enough to allow filling without spills and access for periodical cleaning.

Honeywell HUL570B Specifications Sheet
Mist Type: Cool	Area Coverage: 300 sq. ft.
Water Tank Capacity: 1.25 gallons	Runtime On a Full Tank: 36 hours
Mist Output: 130 mL/h	Speed Settings: Variable
Noise Level: Low	Power Rating: 20W
Automatic Mode:	Sleep Mode:
Automatic Shut-Off:	Aromatherapy Function:
Timer:	360-Degree Nozzle: Only 180-degree
Controls: Analog dial	Warranty: 2 years

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8. Pure Enrichment MistAire PEHUMIDIF

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Summary: It is smaller than other models, so you can place it in your bag and take it with you when traveling. It is cheap to run and can provide excellent coverage for small rooms. Moreover, it comes at a very reasonable price and it’s covered by a 5-year warranty, offered by one of the most renowned brands in the industry.

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A buyers’ favorite, it is usually picked for its excellent price and generous 5-year warranty. The sleek design plays an important part as well, as it gives the impression of cleanness through the white base and transparent water tank that allows you to monitor the water level. It comes with a generous 0.39 gallons tank that can cover a room as large as 250 sq ft for up to 16h, a great feature if you are planning on using it through the night. Although it doesn’t include a timer, which would have allowed you to customize the run time, it does feature an auto shut-off function, designed to turn off all the operations and prevent overheating in case it runs out of water. The mist output depends on the speed setting and can reach a maximum of 150 mL per hour. Plus, you can easily select speed by pressing the only button available, the on/off button. Every time you press it, the moisture output will change and you will receive either more or less of the soothing cool mist.

The manufacturer recommends not to add any essential oils to the water recipient and there’s no special tray, so it cannot be used for aromatherapy. On the other hand, as it features a low power consumption rate of only 14 watts, you can use it continuously to reduce breathing issues and create a comfortable environment for your family.

If you plan on using it in a bedroom, we guarantee you will have no problem sleeping, as it is one of the most silent in its class. It offers a blue night light, which is perfect for kids who need soothing before going to sleep. But you can turn it off if you like your room dark. Nevertheless, there’s no possibility to dim or close the blue light on the on/off button. We agree it can be disturbing, but we suggest turning the device with the light towards a wall. As the nozzle can be rotated 360 degrees, you can change its direction to receive the perfect volume of moisture without being bothered by the bright light.

Pure Enrichment MistAire PEHUMIDIF Specifications Sheet
Mist Type: Cool	Area Coverage: 250 sq. ft.
Water Tank Capacity: 0.39 gallons	Runtime On a Full Tank: 16 hours
Mist Output: 150 mL/h	Speed Settings: 2
Noise Level: Whisper quiet	Power Rating: 12W
Automatic Mode:	Sleep Mode:
Automatic Shut-Off:	Aromatherapy Function:
Timer:	360-Degree Nozzle:
Controls: Button	Warranty: 5 years

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Alternative Ultrasonic Humidifiers Worth Checking Out

We went through a considerable amount of products to find the best that this market offers. However, the 8 products we previously reviewed aren’t the only top-of-the-line ultrasonic technology humidifiers worth looking into. In fact, we have 5 alternatives for those of you who don’t find the right pick among the entries in our top. Check out the following lines to learn more about these alternative models, as well as find out the reasons why we didn’t include them in our main ranking but rather opted to include them in this special section instead.

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Conclusion

Our purpose was to find the best humidifiers on the market and, in this direction, we have used realistic criteria and set high standards for the models we have considered. For example, none of them lacks an auto shut-off function and none of them is louder than 40 decibels.

Now that you have had the chance to take a good look at all of them, you have probably figured out what you need for your home. But a second glance at some of our selected products can only provide you with more information and the certitude that you are making the right decision.

Best Ultrasonic Humidifier for Sale: LEVOIT LV600HH

It has the largest coverage area in our top and can provide a generous mist output, which is fine enough to disperse into the air instead of settling on furniture, but still visible and pleasant to feel. The 1.5-gallon water reservoir is large enough to last several nights, while the sleep mode can easily create the perfect conditions for sleep. Apart from that, it is convenient to use, as it comes with a remote control that allows you to set everything from the distance.

Editor’s Choice: Everlasting Comfort Humidifiers for Bedroom 6L

It is energy-efficient and suitable for use in medium-to-large rooms. With a 1.6 gallons water tank, it can compete even with the most expensive models, as few can offer up to 50 hours of continuous run. Besides that, although it doesn’t come with a fancy function or an LED screen, it is easy to clean and offers an aroma tray that can be used with mint or eucalyptus essential oils during the winter to relieve cold symptoms.

Best Ultrasonic Humidifier for Large Rooms: Crane EE-5301

It is the best option for closed spaces that measure up to 500 square feet, not only because it features an incredible 250 mL per hour mist output but because it is made of highly durable materials that can last through years of utilization. The water tank is generous and can last for a whole day and night. Moreover, although it is filter-free and therefore easy to clean, the manufacturer offers the possibility of adding one if you are dealing with mineral deposits caused by hard water.

Best Ultrasonic Humidifier for Bedrooms: Hupro Premium Ultrasonic Cool & Warm Mist 4L

It has a stylish design, with beautifully crafted stainless steel housing and a bright-lighted control panel. Nevertheless, most buyers pick it for its ability to cover large bedrooms while producing a very low sound, almost like a whisper. It offers 3 filtering layers that form a thick barrier against minerals, microorganisms, and odors, therefore it can be used in a baby’s room without a problem. Additionally, it offers an aroma tray, which is separated by the water reservoir and thus will prologue the mechanism’s lifespan.