Diffuser Vs. Humidifier – Which Device Is Right For You?

It’s common for people to compare diffuser vs. humidifier. Many people thought that the two devices are similar, but there’s actually a huge difference between them. The most significant difference is their use.

Diffusers are mainly used to diffuse essential oils to the air, which makes inhaling the essential oil much easier. On the other hand, humidifiers are used mainly for humidifying or for improving the level of humidity in a particular space, especially during the winter season when the air tends to be dry.

To find out more about the diffuser vs. humidifier, here is everything you need to know about these two devices.Diffuser Vs. Humidifier

Diffuser Pros and Cons

So what exactly is a diffuser and what are its pros and cons? Diffusers are available in a wide variety of sizes, shapes, designs, features, etc. As mentioned, they are mainly used for diffusing essentials to the air for the purpose of aromatherapy. When comparing diffuser vs. humidifier, it’s important to identify the uses of the device and its features, including its pros and cons.

Diffusers take drops of essential oils and mix them with the water in their tanks before distributing to the air. There are four main types of aromatherapy diffusers – ultrasonic diffuser, heat diffusers, nebulizing diffuser, and evaporative diffusers. Regardless of the type of diffuser, all are designed for the purpose of infusing fine mist into the air coming from the essential oils, which produces an aromatic effect.

Here are its pros and cons:


  • Depending on the model of aromatherapy diffusers you’ll buy, the device comes with special lighting features, such as a changing LED light and this works well for alleviating stress and improving energy level.
  • Diffusers enhance the overall mood in a particular room by dispersing therapeutic and aromatic essential oils.
  • Diffusers help to minimize the amount of fungus and bacteria in a room. These two substances are the number one cause of various health issues.
  • The essential oil diffused by the diffusers is absorbed easily by the skin and comes with a stimulating and relaxing effect. This is very useful for those with dry skin or suffering from skin conditions.
  • The mist that the diffusers disperse has a purifying effect on the air in the surrounding.
  • The mist from the diffusers can help to make breathing easier and minimize snoring, depending on the essential oils used.


  • Diffusers are often more expensive, depending on the model and brand that you’ll buy.
  • There are some diffusers with LED lights that can’t be adjusted. Thus, it could interfere with your ability to get a restful sleep at night.
  • Diffusers can also be noisy, although there are others that produce a very small amount of noise, such as the ultrasonic diffusers.
  • Only distilled water can be used for aromatherapy diffusers and not tap water.

Humidifier Pros and Cons

Since we are comparing diffuser vs. humidifier, it’s important that we also understand what a humidifier is, how it works, and its pros and cons.

According to WikiHumidifier, the main purpose of the humidifier is to moisturize the air in a large room especially in places with very dry climates. As you know, dry air could lead to various problems, such as skin illnesses, viral, and bacterial problems. All these could make people get sick and prevent them from getting a good quality of sleep, especially among babies and young kids. Most homeowners would use the humidifier for the purpose of alleviating the symptoms of flu, colds, and sinuses.

Humidifiers are totally different from the diffusers in the sense that they don’t use essential oils in dispersing mist to the air. Since most humidifiers are made with plastic components, this makes them not suitable for use with essential oils.

Although there are now a few humidifiers that also doubles as a diffuser, the two devices are still totally different from each other.

Here are the pros and cons of using a humidifier:


  • Improves the level of moisture in a room by producing warm mist.
  • It lines the nose with added moisture, which relieves sore throat, sinus, dry skin, and dry cough.
  • Provides relief for people with allergies and asthma.
  • Both the warm mist and cool mist humidifier can help treat snoring since it eases the harshness of the air breathed while at sleep.
  • The humidifier helps to provide a room with the right level of moisture and this can help to prevent furniture from cracking.
  • It requires minimal cleaning and maintenance.
  • The humidifier can operate using tap water.


  • To ensure that the humidifier device runs smoothly, it must be cleaned and maintained regularly.
  • Not designed to be used with essential oils.
  • It could produce some noise.

Which Device Is Right For You?

Now that you knew a bit of information regarding the diffuser vs. humidifier, you should be able to easily decide which device is suitable for you.

If you are not exactly sure what to choose between the two, you can perhaps invest in a humidifier that doubles as a diffuser as well. These devices may be more expensive than a typical diffuser or humidifier, but they are really worth investing for. They are also capable of monitoring the level of moisture in the air since they usually come with humidity readers.

On the other hand, if you don’t want to spend on an expensive device that doubles as a humidifier and a diffuser then ask yourself what it is that you exactly need? Would you prefer a device that can help to make you feel relaxed? If so, then choose the diffuser, which disperses your choice of essential oils into the air. The aromatherapy diffuser can help to make you feel relaxed and rejuvenated after a grueling day at work. On the other hand, if you want a device that can improve the level of moisture in your home or office, then the humidifier is what you need.

Hopefully, this article about the diffuser vs. humidifier can help to shed light on the differences between the two devices that often brings confusion to a lot of homeowners.

Leave a Reply

Your email address will not be published. Required fields are marked *