How Many Drops of Essential Oils Should I Put in My Diffuser?

how many drops of essential oils should I put in my diffuser?Using an essential oil diffuser can be a life changer for many people. Diffusion with an ultrasonic cool mist humidifier is the best way to get the tiny molecules of essential oils into the air while maximizing the properties and benefits of the oils. Whether you’ve gotten a cool mist humidifier simply to add fragrance to your life or in order to use essential oils therapeutically for sleep, energy, or colds and flu, you are likely to find yourself wondering what you ever did without an ultrasonic essential oil diffuser!

Diffusing essential oils is definitely based upon science—the science of powerful plant extracts as well as the science of the human body’s response to them. However, diffusing essential oils may also be considered to be an art as the blending and mixing of certain oils together comes along with a certain amount of creativity and exploration. And the amount of essential oils that you use can have a significant effect on how much you enjoy your oils.

Although many people very much enjoy their essential oil diffusers, quite a few find themselves asking the question: “How Many Drops of Essential Oils Should I Put in My Diffuser?

How Many Drops of Essential Oil for a Diffuser?

The difficulty is that there is no exact answer to this question as this answer may depend on several factors, including which essential oils you are using and what brand and size of diffuser you have as well.

While the manufacturer instructions for each appliance may differ, most electronic ultrasonic diffusers hold around 100 ml of water and typically function well with between 3 and 5 drops of essential oils. A larger essential oil diffuser might hold 200ml, meaning that you can use between 6 and 10 drops. Of course, you would just plan to go up from there if your diffuser is even larger.

You will definitely find that some types of oils are more potent than others, meaning that you may need to use more or fewer drops in order to achieve the results you like. You may also find that there is a difference between one company’s versions of essential oils over the other as some may be stronger and more potent while others may be less potent.

The Best Essential Oil Diffusers

How to Use an Essential Oil Diffuser

Of course, your diffuser should have come with manufacturer instructions included which would be a good way to find a starting place. However, if you find that your diffuser is too weak or too strong, you can adjust the amount of oils you use up or down based upon this. If you are using your diffuser in a small bathroom or office, you will likely need fewer drops of essential oil than if you are using it in a large room such as a living room or great room.

To make sure you are making the best use of your oils, be sure that you are adding water to your diffuser only to the maximum fill line. Then, after adding water, add your favorite blend of essential oils. Then, fix the lid securely back onto the appliance and place it in a secure place near the center of the room so that it can reach as far as possible. Of course, the diffuser and the cord should be kept safely out of traffic patterns so that there are no accidental bumps or spills.

Best Essential Oil Diffusers

If you don’t have an essential oil diffuser, or you’re looking to improve upon what you do have, we have some suggestions for essential oil diffusers based on research and Amazon Reviews. Check out the brands and models that we recommend here:

The Best Essential Oil Diffusers


Using a cool mist humidifier is one of the best ways to get essential oils into the air for purification purposes, and into the air so that they can be breathed into the body. Between 3-5 drops of essential oils for your 100ml diffuser should work pretty well and you can customize it based upon your brands, blends, room sizes, and other factors.

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