What is an Ultrasonic Diffuser?

The ultrasonic essential oil diffuser is a small device that spreads essential oils in the air. It can be placed in any room of the house to diffuse both the fragrance and the benefits of the oils.

Ultrasonic diffusion is a cold diffusion method which does not deteriorate the original fragrance of essential oils but also preserves their energy values.

what is an ultrasonic diffuser

The diffusion of your essential oils by Ultrasonic is a cold, silent, and very efficient mode of diffusion. They are easy to use, easy to maintain, and respect the properties of your essential oils so that you can make the most of their benefits and your favorite scents.

The operation of these diffusers is similar to that of mist diffusers. The diffusion of your essential oils is done cold by means of water supply and a silent fan. This fan will then propel your scents through a light mist, which, unlike misters, will stay in the air longer thanks to ultrasonic.

How Does Ultrasonic Diffuser Work?

Also known as a mist diffuser, the ultrasonic diffuser works cold, unlike essential oil burners or gentle heat diffusers.

The smell of essential oils can remain intact, and the rise in temperature does not compromise their energy values.

This is made possible by the emission of ultrasonic waves inside the water tank with which the device is fitted.

The capacity of this varies from a few tens of milliliters to more than a liter and defines the autonomy and the surface covered by the diffuser.

Above water, waves are propagated at a frequency ranging from 20,000 to 80,000 Hz.

The water is then transformed into droplets so fine that they become vapor, the latter then being propelled towards the outside of the device with the drops of essential oils remaining on the surface of the water.

Depending on the frequency emitted, the droplets will be more or less thick, which will affect the density of the vapor and the surface it covers.

You may also like to read: What to look for when choosing an ultrasonic diffuser?

The Advantages of Ultrasonic Diffusers

Ultrasonic diffusers are becoming more and more common, and not without reason. They have certain advantages, both on the technical and aesthetic aspects.

Purifies and Cleanses the Air

Aroma diffusers help to purify and clean the ambient air. Plus, essential oils added to a diffuser increase the purifying effect and can help kill bacteria and fungi in the air.

Maintains the Quality and Effectiveness of Oils

This mode of diffusion creates a mist of cold water so that the oils are not altered by the heat. Unlike a candle diffuser (perfume burner), the therapeutic effect of which is greatly reduced. On top of that, it is a waste of the oils that have been carefully extracted from the flowers and trees. To illustrate this, think of jasmine flowers picked by hand at night to retain their natural and optimal scent. Therefore, an ultrasonic essential oil diffuser ensures that the quality and effectiveness of essential oils remain optimal.

Diffuses a Pleasant Scent Quickly in a Room

This type of diffuser divides essential oil and water into millions of micro-droplets, creating a pretty mist that quickly spreads across a room. It will only take a few minutes for a room in your home or office to be scented with a powerful olfactory aroma and intoxicated with essential oils. Since scent has such a big impact on how we feel, it is essential that the environment in which we operate smells pleasant. By diffusing essential oils, odor nuisance can be eliminated, and a nourishing atmosphere can be created.

Multifunctional Devices that Don’t just Scent

One of the advantages of misting devices is their ability to act as a humidifier, thanks to the water tank.

Whether used with or without essential oils, the diffusion of steam helps to increase the humidity of the room in which they are located.

This has many benefits, in houses or apartments that are often made too dry by heating.

Humidification makes it possible, in particular, to fight against dryness of the skin, against problems related to the respiratory tract (asthma, colds, etc.) or even against fatigue.

By adding a few drops of essential oils to the diffuser tank, you can further enhance the benefits of steam.

Note that ultrasonic diffusers are the only ones that have this feature of releasing water vapor.

This is why they are particularly appreciated by people looking for a complete device capable of preventing and treating the ailments that develop at the onset of winter and of making it easier to fall asleep.

In addition, to use for aromatherapy, ultrasonic diffusers are also light therapy devices.

Indeed, most of them have options to turn on one or more lights located under the cover that protects and dresses them.

Depending on the model, one to 7 different light colors are available. They can illuminate in a fixed manner, follow one another, or even create specific lighting effects.

Diffusers that Fit Everywhere

If ultrasonic technology is very popular with users, it is also for the very low noise it emits. Ultrasound is, in fact, inaudible to humans, offering a relatively silent diffusion (if the fan itself is silent).

The only sound you can really hear with these models of foggers is the lapping of the water in the tank. Annoying for some, this slight noise will be rather soothing for others.
These are. Therefore, diffusers are well suited for the practice of yoga, to place in an office or in a bedroom, for example.

Equipped with an automatic extinguishing system when they run out of the water and sometimes with a programming system for the most successful models, the ultrasonic diffusers can be turned on at bedtime without worry, for easier falling asleep.

However, these diffusers are not limited to small volumes because the models with the largest capacities can diffuse the aromas in rooms up to 60-80 m2.

So there are devices that are suitable for every location in the house.

Some can even be moved from room to room since their options for adjusting the intensity, duration, and direction of the mist give the opportunity to customize the diffusion according to the surface to be covered and your needs.

Design, The Undeniable Strong Point of Misting Models

Their mode of operation gives ultrasonic diffusers a multitude of possibilities in terms of their visual appearance.

There are all kinds of them: from simple cylinders or cubes to more elaborate models, and sometimes in the shape of animals, drops, or plants, almost everything is possible with these diffusers.

Many materials can be used in the manufacture of ultrasonic devices, thus increasing the diversity of models on the market.

Most are plastic, but some are also made with resin or glass for strength and style.

The Disadvantages of Ultrasonic Diffusers

You have to be very careful to clean it well after each use at the risk of having to change the glassware if it becomes clogged. If the room is small, the diffusion is sometimes too strong for the smell. The motor may also emit a small noise and vibration of varying strength.

Why Should I use Ultrasonic Essential Oils Diffuser?

The reasons are numerous, whether for their quality of diffusion, their quality of restitution of your essential oils, their simplicity of operation or maintenance, their designs, or quite simply the value for money, which ensures you to have a reliable diffuser. And efficient at an affordable price.


Ultrasonic diffusers are equipped with a fan and a system that creates ultrasound. The combination of these two components gives birth to a gentle rising mist that is responsible for transporting your essential oils. The micro-droplets of water and oil move and perfume your interior with your favorite fragrances. But why use ultrasound? Quite simply because the ultrasound will help the fan to diffuse the micro-droplets further. They stay in the air longer, move farther, which provides a larger diffusion surface and prevents the mist from falling on the cabinet where the diffuser is placed.

A Complete Restitution of Your Essential Oils

As you can see, ultrasonic diffusers diffuse your oils through a cold ventilation system. All you need to do is add a little water, turn on your diffuser, and you’re ready to go. But simplicity is not the goal here. Indeed the cold diffusion of your essential oils is the principle of diffusion offering the best quality of restitution of their scents and their effects. By avoiding the diffusion by heating of your oils, you respect their chemical properties and maintain their integrity. The smell is then perfectly restored, thus guaranteeing you to take full advantage of the therapeutic benefits of your essential oils.

Easy to Use and Maintain

Aromatherapy is an opportunity for you to relax, unwind, and enjoy a little moment of respite. This is why we are continually seeking to offer you quality, reliable, efficient, and simple diffusers. What could be more unpleasant than having to waste 20 minutes to prepare the diffuser? Spend 20 minutes removing the diffuser to clean it at the risk of breaking it. This is why we selected for your devices that are easy to use and maintain—user manual and intuitive operation, reservoir accessible to deposit essential oils and to clean it. We have thought of everything to ensure that your experience with your diffuser is the best possible.

How to Maintain and Clean Your Ultrasonic Essential Oil Diffuser?


  • Every week, empty the water tank. Wipe it off with a soft, damp cloth.
  • If necessary, use a cotton swab to wipe the ultrasonic transducer at the bottom of the water tank with white vinegar and rinse with water. (NOTE: do not clean the diffuser with alcohol as this attacks the edges of the bowl.)
  • After 15 to 20 days of use, if the device is not diffusing a mist, clean the transducer as described in the previous step or check the filter if it has one.
  • Clean the device after a long period of storage. Store in a dry place.

How to Use its Ultrasonic Essential Oil Diffuser?

  • Never use it without water. Switch off the appliance when the tank is empty if it does not have an automatic shut-off.
  • Never fill the tank directly from the water tap. Use a cup or the measuring cup if it is included, and do not pour water into the air outlet; it could damage the device.
  • If the maximum water guideline is exceeded, pour out the excess using the water outlet
  • Secure the top cover to the diffuser correctly.
  • For aromatherapy, you can add 5-10 drops of essential oil directly to the water. We generally recommend 2 to 3 drops of essential oils per 100 ml of water. (Never add oil directly to the tank without water).

To Conclude

Now you know all about the ultrasonic diffuser. Its advantages, disadvantages, how to use it, and especially the points to check when making your choice.

The ultrasonic diffuser is an excellent choice for us. It represents the best value for money. It is the most economical model and the least greedy in essential oil because of its use of water.

Suppose you are convinced that the ultrasonic diffuser is right for you! All you have to do is choose the model that suits you from our wide range and thus start to perfume your interior with an olfactory atmosphere of essential oil.