Essential oils have been used for thousands of years for medicinal purposes, but only recently has there been a rise in popularity regarding what these organic compounds can do. Essential oils are natural oils that have been extracted from a variety of organics and botanicals, via isolated cold pressing or steam distillation.

While these oils are usually applied topically to treat a variety of ailments, one of the most popular uses for these oils involves the practice of aromatherapy, with the help of the best essential oil diffuser.

So, how do you use an essential oil diffuser for aromatherapy?

Diffusion is the process of dispersing or spreading natural oil aroma within a space so that the fragrance of these oils permeates the air. A diffuser is basically a device that allows you to accomplish this.

Advantages of Using an Essential Oil Diffuser

When you use a diffuser, the oils are converted into a fine vapor, which will enable the oil to remain suspended in the air for a long period of time. The vapor is very light but still offers impressive coverage without dissipating too soon.  When these vapors are inhaled they can aid in respiration. But there are also many other benefits that come with practicing aromatherapy using an essential oil diffuser that we’ve included here:

•    Using a diffuser is an effective way to kill airborne bacteria and fungi. Research has shown that essential oils that are derived from oregano, thyme, clove bud, and cinnamon bar, in particular, have a type of antibiotic effect, fortifying the immune system and killing germs.

•    A diffuser also offers a type of ionizing effect, which helps to minimize the amount of dust in the air. The diffuser will release more negative ions in the air, which will attach to positive ions, working to eliminate dust by causing it to fall out of the air and land on the ground. This results in less dust in the air, minimizing the amount of dust that’s inhaled into the lungs. For some people, inhaling dust can cause allergic reactions or irritation.

•    Using a diffuser also offers the benefit of efficiently and quickly spreading a pleasant smell throughout the home. The diffuser will basically split the oil into millions of small particles creating a fine vapor that will quickly find its way throughout the home. Once you turn on a diffuser, your home will smell amazing in seconds.

•    The smell of certain essential oils can also work to improve your mood. You’ve probably heard how a person’s sense of smell is tied to the part of the brain that’s responsible for memory and recall. This is why it’s common that certain smells can trigger feelings of wellbeing and nostalgia.

•    Many diffusers can also humidify the air, which will come in handy when you think back to how dry and unpleasant the air in your home is during the winter. Keep in mind that a constant flow of dry air can actually cause the skin to become flaky and dry, irritating the mucous membranes, and wreaking havoc on the respiratory system. Using an essential oil diffuser can help to maintain the humidity levels in the home at around forty to sixty percent, which provides the ideal setting for excellent air quality.

•    While heating essential oils using a type of aromatherapy lamp is another popular option, doing so can often diminish the effects of the oil because the lamp causes a slight degradation that occurs during the heating process.

Essential Oil Comparison Chart

Vic Tsing Cool Mist
VicTsing Cool Mist Humidifier Essential Oil Diffuser
10 HoursLEDHumidifier$$$
Cool Breeze Diffuser
Cool Breeze Aromatherapy
8 HoursLEDHumidifier & Ionizer, Air purifier$$$$
Deneve Diffuser
Deneve Essential Oil Diffuser Riverock
4 HoursLEDHumidifier$$

Quick Summary

Vic Tsing

A powerful diffuser that also does double duty as a humidifier, this eye-catching essential oil diffuser features a seven color option LED light display, and automatic shutoff feature and a variety of mist settings so you can choose how much or how little aromatic mist you want released throughout your home.

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Cool Breeze

A colorful, compact essential oil diffuser that offers a ton of functionality to any home, this model can also be used as an ionizer, air purifier, night light, and humidifier. The machine’s lengthy runtime is perfect for users who enjoy using an essential oil diffuser throughout the night.

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This small, compact essential oil diffuser is perfect for one room use. This isn’t a model that comes packed with a ton of features, but it works well as a diffuser and nightlight in one. Because of its compact size it’s also perfect for travel.  However, if you’re looking for a model that can run throughout the night, this may not be the diffuser for you.

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1. Cool Breeze Aromatherapy Essential Oil Diffuser Review-Best Diffuser 2017

Cool Breeze AromatherapyThe Cool Breeze aromatherapy essential oil diffuser features whisper-quiet operation with its colorful egg-shaped design. This model does so much more than just emit an aromatic mist into the air. It also works as an ionizer, humidifier, air purifier, and nightlight. It uses the cool mist method, so the integrity of the essential oil will not be negatively affected.


This model features a four hundred milliliter water reservoir that allows you to run the diffuser all night long. It also comes equipped with an automatic shutoff feature which switches the diffuser off once the water reservoir is empty. This model can cover areas up to five hundred square feet, and since it features a whisper-quiet operation, it can be used any time of the day or night without the worry of waking up any light sleepers in the home.
The humidifying function can provide much-needed moisture in the air during dry weather.
The LED light system offers seven different color choices including pink, yellow, red, orange, green, blue, or purple. Or, you can choose to shut the light feature off.
This model has a run time of eight hours when switched to the max mode, using the thirty to fifty mist per rate setting. You can also choose from the one, two, or three-hour misting run time settings.


This diffuser needs regular maintenance, two to three times a week, depending on how frequently you use it, in order to avoid mineral build-up. To clean, simply rinse out the water reservoir using a mild dish detergent and allow it to air dry.

Using the humidifier feature can affect the essential oil misting runtime.


This model is very versatile and the perfect essential oil diffuser if you’re looking for a colorful, affordable model that can run while you sleep. The automatic shut-off feature will provide you with a little peace of mind, knowing the machine will not burn out once the reservoir is empty. The sheer versatility and innovative features it offers is what makes this model our top rated product.


2. VicTsing Cool Mist Humidifier Essential Oil Diffuser Review-Best Humidifier/Diffuser Combo

VicTsing Cool Mist Humidifier Essential Oil DiffuserThe first thing you’ll notice when you take the VicTsing Cool Mist humidifier essential oil diffuser out of the box is the natural, beautiful exterior. The diffuser’s wood grain surface will help you relax before you even switch it on. Once this diffuser gets going, the powerful refreshing mist will also impress you.


This model features seven different colors of LED mood lights which create the perfect environment to relax in. Instantly, this unit will become the centerpiece of any room. It resembles a gourd, featuring a narrow mouth at the top, which is where the aromatic mist makes its way out and across the room. A thin line of translucent plastic wraps around the unit at the widest point of the diffuser. This is where the LED lights will play out. Located at the bottom you’ll find a set of buttons that will allow you to control the mist and the lights.
This model features a medium-large capacity of three hundred milliliters. Most models in this price range will only offer a capacity of a hundred milliliters, which is barely enough for a five or six hour run time. With this model, users will enjoy a run time of ten hours, which is pretty impressive.
To use, you’ll only need five drops of your favorite essential oil, which is placed in the water reservoir. With a strong mist output, this diffuser can easily cover two to three medium sized rooms. If you don’t want the aroma to be that strong, simply adjust the mist output setting.
You can also choose the operation time. This model offers four options: one, three or six hours, or continuous. The continuous mode allows the diffuser to run until the reservoir is empty. The automatic shut-off feature will switch the machine off once the reservoir is empty.


The humidifier can be used to add moisture in the air, especially during colder weather when heater use is constant. But unfortunately, using the humidifier can decrease the machine’s run time capabilities depending on how long the humidifying feature is used.


Definitely a machine that has a reputation for durability and convenience, we loved the automatic shut off safety feature, the ability to change the color of the LED light display, and the ability to switch on the humidifier for a more refreshing breathing space.


3. Deneve Essential Oil Diffuser Riverock Review-Best Value

Deneve Essential Oil Diffuser RiverockThere’s plenty to love about the Deneve Riverock essential oil diffuser. This model features a small, sleek, modern appearance that’s designed to complement any room. It’s also very quiet-running so it’s perfect for night use. The diffuser’s controls are both simple and brilliant.


For the controls, you’ll find one button to switch the device on. You can also use this button to cycle through three light modes and to switch the diffuser on or off. The bright LED light band that wraps around the diffuser is subtle, emitting a gentle glow that’s not overpowering. You can also choose to shut the LED light off during use. Like with most modern models of diffusers, the Riverock also comes with an automatic shut-off feature which switches the diffuser off once the tank is empty.


Obviously, this diffuser isn’t as versatile as the other models we’ve reviewed, and it only offers a single mist setting. The shorter runtime of four hours and the smaller tank do not make this model the best choice for larger rooms. In fact, the diffuser has a size limit of just two hundred and fifty square feet, which is adequate for bedroom use.


This is an affordable, elegant essential oil diffuser that’s perfect for one room use. It’s not very powerful, but you can use it effectively in smaller rooms in the home. We love its high portability, its simple design and the overall quality it offers, and all for a reasonable price.


What to Look for in an Essential Oil Diffuser

Essential Oil DiffuserChoosing the best essential oil diffuser can be a big decision because you don’t want to end up stuck with a mediocre device that can’t handle the job. While it may be tempting to bypass doing a little research, it’s always a good idea to do some digging and take the time to investigate some of the following points in order to make the best purchase for you and your home:

Let’s start off by looking at operating time options. How long do you want to run the diffuser? Some models offer different operating times, so make sure you check out this important detail before you buy. Operating time lengths for mid-price diffusers can range from three to four hours, while higher priced models can run between six to ten hours. This can be especially important if you want to purchase a diffuser that’s able to run all night as you sleep.

A diffuser requires water in order to operate. The amount of water that a diffuser holds will determine the amount of run time. Ideally, a diffuser should have a water reservoir that holds between a hundred and three hundred milliliters of water.

Airflow output is another factor to consider. Airflow output is the intensity or force of the vapor output. With a higher level of output, a diffuser is able to more effectively push out the vapor at an increased rate.

When it comes to programming and time options, this is one area that requires some trial and error before you’ll have everything figured out. When you use essential oils, a little oil can go a long way, so you may not even need to run it for a long period of time. Some people have experienced better results when they run their diffuser for a set amount of time, then allow for a pause in operation before restarting the device. This can help to manage oil quantities, so you’re not running through your supply too quickly. For this kind of setup, you’ll need to look for a diffuser that features different time cycles.

Automatic shutoff is another popular feature that you should look for. Like with any other type of electrical device, safety is a top concern. Fortunately, there are a number of models on the market that come equipped with this feature. This will prevent the diffuser from accidentally burning out if the water runs out. This is a must-have feature if you plan on using your diffuser while you sleep.

You’ll also need to consider the diffuser’s room coverage ability. You don’t want to purchase a diffuser that is unable to adequately cover the area. People who ignore this important detail usually end up buying two diffusers for just one space. The best models can cover two to three hundred feet, but you can also find diffusers that are powerful enough to cover up to six hundred feet.

If you can’t sleep with the constant sound of humming or buzzing, you’ll need to find a model that offers whisper quiet operation. This is usually a matter of preference, as some people are able to easily block out this type of noise, while others are very light sleepers.

There are many models on the market these days that feature some type of LED lighting for a variety of effects. Most people will use this feature as a nightlight, but it can also add some much-needed lighting in a dimly lit space. Some models with LED lights also come equipped with brightening and dimming functionalities, so you can control light intensity.

These days, most diffusers are stylishly designed and can even add a dash of elegance to your living space. Diffusers come in different shapes and sizes from pyramidal shapes to circular discs. You should have no trouble finding a model that fits nicely into your home’s décor.

Most diffuser manufacturers offer a six-month product warranty, however, you can also find models that come with a lifetime warranty. Be sure to check on this detail before you buy because it can save you time and money if you have to return the diffuser for repairs or a refund.

How to Use Your New Diffuser

How to Use your New DiffuserMost diffusers are very easy to use. Truth be told, these models are even too easy to operate and don’t usually require a whole lot of steps.

For ultrasonic models, all you have to do is simply fill the water reservoir with warm water, add up to ten drops of the oil of your choice, and place the water reservoir back on the unit.

Most programmable models feature a straightforward operation as well, so if you want to program your diffuser for a specific amount of time, it’s not difficult at all.

Many models feature a toggle button functionality, so you can press a single button to breeze through different time cycles.

If you have to sleep in a totally dark room, but your diffuser comes with LEDs, you can always run the device with the light feature switched off. For users who enjoy a little ambient lighting, many models allow users to cycle through different light color schemes.

Different Essential Oil Diffuser Styles

There are several different types of diffusers on the market, but you’ll soon notice that there are five basic types.

A lamp ring diffuser features rings that are made from terracotta or brass that fit over a lightbulb.  The rings feature grooves that go around the bulb’s circumference, which is where the user will place the oil. As the light heats the rings up, the oil is released into the air. This type of diffuser is very affordable but they can definitely be messy to use.

Sandstone and terracotta diffusers come in a wide variety of sizes, but one of the most popular designs is that of the clay pot that utilizes a cork that plug’s the diffuser’s opening. Oil is poured into the pot, then the cork is inserted to seal the pot. Since both sandstone and terracotta are very porous, the oil will seep gradually through the pot, diffusing into the room. Users can somewhat control the aroma intensity based on how much oil is added. While this is also an affordable option, the aroma from the oil isn’t evenly distributed. Often, the smell tends to be very strong at first, then drops off as time goes on.

A fan diffuser is another inexpensive way to diffuse essential oil. This type of diffuser comes in plenty of styles and sizes, but the basic premise is that the user loads up some type of absorbent tray or pan with oil, then the fan blows directly across the pan or tray, dispersing the aroma. A fan diffuser is easy to use and can be operated by either battery power or electricity.

A candle diffuser is very basic and typically looks like a jar or pot with a center that’s hollowed out. The hollowed out space is where the candle is placed. On top of the diffuser, you’ll find a tray or bowl, which is where the oil is placed. Once the candle is lit, it works to heat up the oil, creating the aroma. This type of diffuser features a very straightforward design and requires no other source of power.

An electric diffuser is a self-contained device that will heat up oil via electric heat. This style of diffuser tends to cover larger areas, but you’ll need to properly maintain it by removing built-up oil residue, otherwise, the diffuser will become ineffective over time.

Popular Essential Oil Diffusers That are Leading the Market

While we just covered the five basic styles of diffusers, we thought we’d also mention the two unique styles of diffusers that are flooding the market this year.

The first style is called an essential oil nebulizer. The nebulizer works by breaking up the oil into small molecules before dispersing it into the room. This device features a bulb shaped piece of glass that holds the essential oil and an electric pump, which works to nebulize the oil in order to distribute a fine mist into the area. This type of diffuser works well for therapeutic purposes.

The last style we’ll cover is the ultrasonic diffuser. This device uses a combination of ultrasonic waves and water to distribute a fine mist into the air. The aroma can be dispersed into the air for several hours, depending on how long you decide to set the timer for. These diffusers are popular because they not only disperse aroma, they also work to humidify and purify the air, which works to curtail all kinds of air pollutants that can be bothersome to people who suffer from various respiratory issues.