Winter is ending and summer is on its way.
You may have spent more time at home this year because of the pandemic and cold.
And even if you spend some of the time sitting in front of the humidity-zapping radiator, your skin and nasal passages must feel drier as well.
A diffuser humidifier is a great way to alleviate these symptoms.
It can be hard to choose the right one among so many models, though.
In this guide, we’ve compiled a list of our favorite diffuser-humidifiers for clearing airways and healing dry skin.
So let’s get started with our top 3 picks.
Our Top 3 Picks
- It is beautiful.
- At 500 ml, the tank capacity is ample.
- It lasts for a long time with only one fill of oil.
- Modern, sleek design.
- Excellent choice for smaller rooms.
- Features a color-changing LED light.
- Large tank capacity of 85 oz.
- Easy to fill
- Sleep mode
What’s In This Buying Guide
Table of Contents
This buying guide recommends and reviews the best diffuser humidifiers for a range of situations and type of humidifier.
We’ve also included a buying guide containing buying tips and answers to frequently asked questions.
Why Buy a Diffuser Humidifier?
Improve Comfort
A diffuser humidifier is a great product to own if you live in a predominantly dry area or an area with severe winters. It will add moisture back into the air to improve the comfort of the air you breath and ease irritation.
A diffuser humidifier can keep your home and personal space healthier and more comfortable, especially in the winter or an arid climate.
Here are just a few reasons to buy one:
To Your Health
Do you snore, have cracked lips or suffer from dry skin?
Do you experience sinus congestion or nosebleeds?
All of these conditions can be exacerbated by too-dry air.
A diffuser humidifier can reduce the dryness and alleviate these problems.
Aromatherapy
When used with essential oils, a diffuser-humidifier injects aerosols into the room’s air to achieve a specific purpose.
For example, Peppermint oil can help relieve headaches and stress, while lavender oil can reduce stress.
Safer than other options
A diffuser humidifier is safer than aromatherapy candle and incense sticks because humidifiers do not present a fire risk.
What is a Diffuser Humidifier?
A diffuser humidifier combines the best of a humidifier and an essential oil diffuser into a single device.
The device has a reservoir to pour water into and a separate smaller compartment or tray in which you place a few drops of your favorite essential oil.
The unit turns the water into a fine mist which meets the oil on the way out to release a mixture of oil and water mists into your room.
The device allows you to reap the benefits of both the devices and is convenient.
Best Diffuser Humidifiers
Anjou 500ml Cool Mist Humidifier
Best Overall
Run Time on Low speed:
11 to 15 hoursRun Time on High Speed:
6 to 10 hoursTank Capacity:
17 ouncesDimensions:
10.4 × 7.5 × 7.3 inchesWeight:
2 poundsType:
Ultrasonic
URPOWER 700ml Aromatherapy Essential Oil Diffuser Humidifier
Runner-up
Run Time on Low speed:
20 hoursRun Time on High Speed:
10 hoursTank Capacity:
24 ouncesDimensions:
6.5 × 6.3 × 5.7 inchesWeight:
1.8 poundsType:
Ultrasonic
Homasy Cool Mist Humidifier Diffuser
Best for the Money
Run Time on Low speed:
30 hoursRun Time on High Speed:
15 hoursTank Capacity:
85 ouncesDimensions:
7.3 × 7.3 × 11.6 inchesWeight:
2.2 poundsType:
Ultrasonic
VicTsing Essential Oil Diffuser
Best for the Money
Run Time on Low speed:
Up to 10 hoursRun Time on High Speed:
6 to 8 hoursTank Capacity:
300 mlDimensions:
6.7 x 6.7 x 6 inchesWeight:
2.2 poundsType:
Ultrasonic
VicTsing 150ml Essential Oil Diffuser
Beat Budget Pick
Run Time on Low speed:
5 to 10 hoursRun Time on High Speed:
3 to 6 hoursTank Capacity:
150 mlDimensions:
3.6 × 3.6 × 6 inchesWeight:
1.12 ouncesType:
Ultrasonic
Best Diffuser Humidifiers - Reviews
If you don’t want to spend a lot of money to cool and soften your bed, then we recommend considering the Zen Bamboo fitted mattress pad.
Don’t let the low cost fool you.
This pad is extremely comfortable and sleeps cooler than many other premium bamboo toppers.
PROS
- Two speeds
- Long run times at both high and low speeds are a boon
- It also comes with a timer function
- The design is pleasing to the eye.
- The fine mist doesn't cause dampness
CONS
- Difficult to restart after timer has ended
- May emit white dust unless you use distilled water
Features
- It is beautiful.
- At 500 ml, the tank capacity is ample.
- It lasts for a long time with only one fill of oil.
- Ultrasonic technology is used to evaporate oil and water.
- Produces a fine, cool-to-touch mist
- As an extra safety measure, the automatic shut-off is available.
Our Review
This new product is relatively new in diffuser humidifier market.
This unit is not just stylish though, it comes with several intelligent and modern features.
These include ultrasonic technology and variable speeds, a timer, and automatic shut-off.
Ultrasonic technology lets it to produce a fine mist that adds humidity to the air without creating dampness.
You can set a time limit for the timer, and it will turn off after that. The automatic shutoff turns off the device five seconds after it is empty.
The tank capacity is 500 ml.
The variable-speed function allows you to control the runtime and area coverage.
The URPower unit is a compact and stylish diffuser humidifier that looks great on any nightstand or side table.
Its sleek design and modern wooden accents look amazing.
You can also choose from seven different LED light colors.
PROS
- Two output settings
- Automatic shutoff
- Long 20 hour runtime
- Colorful, color-changing LED lamp
- Extremely quiet
CONS
- No separate oil tray
- Condensation can form below the lid
Features
- Modern, sleek design.
- Excellent choice for smaller rooms.
- Features a color-changing LED light.
Our Review
The URPOWER diffuser humidifier is a unique-shaped humidifier that will immediately catch your eye with its pleasing wooden accents and colorful LED light.
The modern design can be used in any décor and blends beautifully with any interior.
This humidifier does not come with an oil compartment, but you can add oil to the water to work its magic.
This device is will last longer than other units on our short list because it has a larger tank capacity. In fact, it can last up to 20 hours before it automatically shuts itself off to prevent damage.
This cool-mist unit uses ultrasonic technology for water vaporization, making it almost silent.
It also features an LED light that can be lit up in seven colors to match your decor.
If you want an easy device to use and fill, check out the Homasy Cool Mist Humidifier Diffuser.
It features a clean and simple design that allows you to fill it up without removing parts.
Like the URPower, this is a humidifier that can handle essential oils in its water tank.
It provides 360-degree humidification and lasts for up to 30 hours of continuous operation.
PROS
- The transparent tank allows you to enjoy the movement of water
- Large tank capacity & run time
- Sleep mode for a peaceful night sleep
CONS
- No separate compartment for oils
- Can be noisy
Features
- Large tank capacity of 85 oz.
- Easy to fill
- Sleep mode
- 360-degree humidification
- Transparent tank displays a mesmerizing effect.
Our Review
Compared with the other units on our list, this device is the easiest to fill because it features a top-fill design with an easy-to-remove lid.
Just open it and fill the tank, there is no need to disassemble or remove any parts.
It is also the longest-running unit on our list, lasting up to 30 hours.
The 360-degree humidification circulates the mist effectively in all directions.
And if you add a few drops of essential oil to the tank, it will circulate a burst of fragrance in the entire area.
The VicTsing Essential Oil diffuser is a great choice to add a subtle scent and moisture to one small room.
This tiny unit can be used for personal use, but it won't make a big difference in your living space or kitchen.
It has a runtime of up to 10 hours.
PROS
- Includes a timer and automatic shutoff
- Small and compact size
- Very pretty LED effects
- It doesn't make much noise.
CONS
- Not suitable for large or medium sized rooms.
- Annoying beeping sounds sometimes occur.
Features
- It has a solid wood look
- LED light strip with 15 modes & 14 colors.
- Before switching off, it emits an audible sound.
- Effortless to use and beautiful to look at.
Our Review
The VicTsing Essential Oil diffuser is intended for personal use.
Although it does not add moisture to the air, it is an excellent choice if you are looking for an aromatherapy diffuser.
This powerful piece of equipment uses ultrasonic frequency to create a pleasing, cool, and fragrant mist.
It has a robust plastic body that looks like wood and an LED strip at the base that gives it life. You can choose from 14 colors, and the strip will switch between colors to create a pleasing visual effect.
It is ergonomic and features buttons along the base.
The device is silent but can emit an audible sound when it runs dry.
We like the VicTsing diffuser for its budget price and small capacity.
With eight color-changing options, it can double up as a table lamp or you can place it on a nightstand or a coffee table.
PROS
- Compact and easy to transport.
- Sleep mode ensuresyou get a restful night of sleep
- Auto-shutoff protects against burnout
- Adjustable LED light with 8 different colors
- Can also be used as a nightlight.
CONS
- A little tricky to lift the top.
- Covers a small area.
Features
- Compact and easy to carry.
- Can cover a large area.
- Sleep mode works all night quietly.
- Automatic shutoff prevents burnout
- lluminated by LED lights
Our Review
The robust atomizing plate in this machine makes it ideal for small spaces and areas. The plate oscillates approximately 3 million times to produce a fine, cool mist that blows out of the top and spreads around.
Combine it with your favorite essential oil to create a rich, strong, and fragrant mist that will surround your guests.
On low setting, the device will last up to 10 hours. It can be set up once, and then it will work without you having to refill it.
Features to Consider When Buying a Diffuser Humidifier
A diffuser humidifier is a unit that combines the health benefits of a humidifier with an essential oil diffuser.
This makes it more cost-effective and energy efficient than purchasing two different appliances.
A few years ago, diffuser humidifiers were seen as more of a fad, but today there are a lot of diffuser humidifiers on the market that offer all kinds of benefits and features.
To narrow down your choice, consider the following features and factors:
Tank Capacity
A humidifier's tank capacity dictates how long the humidifier can operate before it needs to be refilled.
Diffuser humidifiers are generally smaller than other humidifiers. Most models hold 20 ounces of water. The smaller models can hold 16 ounces, while the larger ones can hold around a gallon.
Most diffuser-humidifiers are designed so their tank will last at least a full-night’s sleep, so if you want one for bedtime you don’t need to worry about this spec too much.
But if you want to use it 24/7, pay close attention to the amount of time between refills.
Noise Level
Diffuser humidifiers are mainly used to relax your mind, but if the machine is too loud you won’t exactly get that reaction.
So, knowing the noise level before purchasing is important.
A silent diffuser-humidifier will have a noise level of less than 30 decibels.
That said, some units make more than this – up to 55dB – which can still be OK for many people due to the white noise nature of the sound.
Coverage Area
The coverage area refers to the maximum space the machine can humidify. It's measured in square feet and can be found in all models.
A unit with 150 square feet coverage is best if you're need it for a small office or child’s bedroom.
A unit with 251 square foot coverage is best for a master bedroom.
For medium and large rooms, there are units that cover as much as 700 square feet.
Easy to Refill
A good diffuser humidifier is not only easy to use but easy to fill.
Maintenance and Cleaning
Diffuser humidifiers require regular cleaning, just like any other machine.
However, because they use water, they need more attention or it can lead to mold or bacteria growth.
In addition, essential oils can leach it if they are left on plastic parts for too long.
Therefore, it is crucial to choose a model that is simple to clean and maintain.
Speed Settings
A unit with variable speed settings is a good idea. That way you can adjust the runtime and intensity of the mist from the unit.
Filter or No Filter?
Many units with a built-in water filter are compatible with regular tap water. If your unit does not have a filter, then we recommend only filling it with distilled water.
Cost & Warranty
The cost of any unit is the most critical factor. Although diffuser humidifiers can be very inexpensive, it is vital to keep your budget in check.
You should also check the warranty coverage to ensure that if there is any problem with your machine, you can get support and help.
Types of Diffuser Humidifiers
Diffuser humidifiers come in four basic types that differ based on how they operate.
Ultrasonic
Ultrasonic humidifiers make use of ultrasound waves to both diffuse oil and humidify. The unit vibrates a small plate of metal to accomplish this.
The frequency of vibrations is so high that water and oil droplets break down and turn into a cool mist that pushes out as a vapor.
The only downside to ultrasonic humidifiers is they can leave behind a powdery white residue of minerals from the water that you have used. You can reduce white dust by using distilled or additive water.
Warm Mist
Warm mist humidifiers heat water to evaporate it. The top of the unit contains a heating element that heats water to make steam.
The mist produced is not really hot, despite the name. It cools off before reaching your lungs. These units consume more energy and are usually more expensive than other types.
Evaporative
Evaporative diffusers use a fan to blow dry air over wet pads or wicks which evaporate the water into the air before it is blown back into the room.
The pads and wicks act as a water filter, and the fan blows all the oil and water vapors.
The oil loses some of its potency as it evaporates, however. And because of the powerful fan used, evaporative units can be loud.
Nebulizer
In a nebulizer, room air is compressed to condense water and create a mist. Nebulizers do not require heat or water, making them more like diffusers.
They use a little pressurized air to atomize the oil. The oil is then pulled towards the distribution tube by a vacuum. This expels the particles and releases the aroma.
Pros and Cons Of A Diffuser Humidifier
Diffuser humidifiers can be highly beneficial, but they also have some drawbacks. Let's look at both:
Pros
Easier to Breathe
Dry weather can cause a stuffy nose, dry throat, and sometimes nosebleeds. Dry weather can also cause snoring, difficulty breathing, and, even worse, snoring. A humidifier diffuser can solve these issues and help you breathe more easily by bringing back moisture.
Benefits of Essential Oils
Are you aware that essential oils can have different benefits? You can enjoy their benefits with a diffuser humidifier. Simply add a few drops to the water, or place them in an oil compartment. Then, you can enjoy relaxing aromatherapy sessions as the machine vaporizes the oil.
Soothe Chapped Lips and Dry Skin
Dry skin and chapped lips are the clear signs you air is too dry.
These conditions are not only unsightly but can also become painful if they aren't treated properly.
Diffuser humidifiers can soothe and alleviate these conditions quickly. They restore your skin's moisture by adding moisture to your environment.
Cons
Bacterial Growth
Humidifiers that use water are delicate and need to be maintained. The liquid can become contaminated if it is not cleaned up immediately. It can also make you very sick if you continue to use the same liquid.
Allergic Reactions
Essential oils can cause allergic reactions in some people. Pets and pregnant women are susceptible to essential oils.
You should ensure that no one is allergic to essential oils and that no pets or children are present. Essential oils can cause severe allergic reactions, even when vaporized.
Frequently Asked Questions
Do oil diffusers negatively impact air quality?
Some believe oil diffusers can cause indoor pollution. The University of Melbourne conducted a study on 24 essential oils and found that they emit many volatile organic compounds.
What are the advantages of a warm-mist humidifier?
Warm-mist humidifiers can be beneficial for your health. These humidifiers can reach higher moisture saturation levels and can be used with other medicated products to provide better relief for sinusitis and cough.
They can also be used to inhibit the growth of bacteria, germs, and other microorganisms.
Can I use a diffuser to humidify?
A diffuser can be used as a humidifier. It will not add as much moisture as a regular humidifier, but it will improve the humidity level.
Is a diffuser able to act as a cool-mist humidifier?
Some diffusers are not capable of acting as cool-mist humidifiers. Evaporative and ultrasonic diffusers are both capable of acting as cool-mist humidifiers. Warm mist humidifiers can be made from heat-operating diffusers, while nebulizers are unable to function as humidifiers.
Final Verdict
After comparing the various models and units, we believe the Anjou 500ml Cool Mist humidifier is the best diffuser humidifier for most people.
The large tank in the URPOWER 700ml Aromatherapy essential oil diffuser humidifier brings it to the second spot.
The VicTsing 150ml Essential Oil Diffuser is our top pick for a budget buy.
As a degreed engineer, I love new technology as much as you do (perhaps more). I also understand how to sort the best products from the rest. My team and I spend dozens of hours each week reviewing the best & latest products for your bedroom. Many are tested in-house, and others we break down based on our technical understanding. Whether you need a bed-cooling system, an adjustable bed, or a new CPAP machine – we've got you covered.