Humidifier vs Diffuser: Which One Should You Choose?

Published by Enaam Siam on March 11, 2023 | Last updated on May 14, 2023

As winter sets in and the air gets drier, many people use humidifiers and diffusers to add moisture to their homes. Dry air can cause a range of problems, from dry skin to respiratory issues. Humidifiers and diffusers can both help alleviate these problems, but they do so in different ways.

Humidifier vs Diffuser, what’s the difference between these two devices? And which one is right for you?

In this Cleaners Advisor guide, we’ll compare humidifiers and diffusers, highlighting their similarities and differences. By the end, you’ll be able to make an informed decision about which device best suits your needs.

How to Clean a Dehumidifier Easily in 15 Minutes , Can A Humidifier Make You Sick?, How To Clean HoMedics Humidifier? and many related topics you will find in Cleaners Advisor guide.


What is a Humidifier?

A humidifier is a device that adds moisture to the air. It does this by emitting water vapor into the air, increasing the humidity levels in the room.

Humidifiers can be used to alleviate dry skin, chapped lips, and other respiratory issues. They can also help reduce snoring, as dry air can cause the nasal passages to become congested.

Humidifier vs Diffuser

Types of Humidifiers

There are two main types of humidifiers: evaporative and ultrasonic. Evaporative humidifiers work by blowing air over a wet wick or filter, which then evaporates and adds moisture to the air. Ultrasonic humidifiers use high-frequency vibrations to create a fine mist.

Humidifier vs Diffuser

Pros and Cons of Humidifiers

Humidifiers are great for adding moisture to the air, which can alleviate a range of problems. They’re also relatively inexpensive and easy to use. However, they do require regular cleaning to prevent the growth of bacteria and mold. They can also be noisy and require frequent refilling.


What is a Diffuser?

A diffuser is a device that releases essential oils into the air. It does this by breaking down the essential oils into tiny particles and dispersing them into the air. Diffusers can be used to create a relaxing atmosphere, improve mood, and alleviate stress and anxiety.


Types of Diffusers

There are several types of diffusers, including ultrasonic diffusers, nebulizing diffusers, and heat diffusers. Ultrasonic diffusers use high-frequency vibrations to turn water and essential oils into a fine mist, which is then released into the air. Nebulizing diffusers use pressurized air to break down essential oils into small particles, which are then released into the air. Heat diffusers use heat to evaporate essential oils, releasing their fragrance into the air.

Humidifier vs Diffuser

Pros and Cons of Diffusers

Diffusers are great for creating a relaxing atmosphere and improving mood. They can also alleviate stress and anxiety. However, they do require regular cleaning to prevent the buildup of essential oils (Aromatherapy, or essential oil therapy). They can also be expensive, especially if you’re using high-quality essential oils.

Humidifier vs Diffuser

Humidifiers add moisture to the air, while diffusers release essential oils into the air. During this Cleaners Advisor guide, we’ll look at the pros and cons of each device, and help you decide which one is right for you.

Here’s a comparison table outlining the main differences between humidifiers and diffusers:

FunctionIncreases humidity levels in the airReleases essential oils into the air
SizeSuites for larger roomsWorks more effectively in smaller spaces
BenefitsReduces dryness, improves breathing, and makes skin full of lifeImproves mood, relaxes, and reduces stress
TypesEvaporative, ultrasonic, impeller, steamUltrasonic, nebulizing, heat
WaterRequires distilled water for best resultsUses tap water, but may require filtered water
MaintenanceNeeds regular cleaning and filter replacementRequires cleaning after each use
CostRange from affordable to expensiveGenerally, diffusers are more expensive than humidifiers
Health concernsCan harbor bacteria if not properly maintainedEssential oils may cause allergies or irritation
Noise levelCan be noisy depending on the typeGenerally quiet

As you can see, while both humidifiers and diffusers offer benefits for indoor air quality, they function quite differently and offer distinct advantages. When deciding between the two, it’s important to consider your specific needs and preferences, as well as any health concerns or maintenance requirements.

Watch the video below for more details about Humidifier vs Diffuser:

Humidifier vs Diffuser: Which One is Right for You?

So, which device should you choose? It really depends on your needs. If you’re looking to add moisture to the air and alleviate respiratory issues, a humidifier is your best bet. However, if you’re looking to create a relaxing atmosphere, improve mood, and alleviate stress and anxiety, a diffuser is the way to go.

Price: Humidifier vs Diffuser

Generally, diffusers are more expensive than humidifiers. And that is because they cost more to produce.

For example, the price of ABS plastic used to make the water tank of diffusers and other parts is higher than the cost of PP plastic used in humidifier production.

Additionally, more (complex) parts are used in diffusers because they need to break down both water and essential oils. That explains why it might cost you more to purchase a diffuser.

While other factors are major deciders, your budget also plays a role in determining which of the gadget you’d purchase.

What is Aromatherapy?

Aromatherapy is the practice of using plant-based essential oils for therapeutic purposes. Essential oils are highly concentrated plant extracts that are obtained through distillation or cold pressing of various parts of plants, such as flowers, leaves, stems, roots, and bark.

These oils contain the essence or aroma of the plant and are believed to have medicinal properties that can promote health and well-being.

Humidifier vs Diffuser

Benefits of Aromatherapy

  1. Relieving Stress and Anxiety: Essential oils like lavender, chamomile, and bergamot are known for their calming properties and can help reduce stress and anxiety. Studies have shown that inhaling these oils can lower cortisol levels and promote relaxation.
  2. Alleviating Pain: Essential oils like peppermint and eucalyptus are known for their analgesic properties and can help relieve pain and inflammation. These oils can be used topically or inhaled for pain relief.
  3. Improving Sleep: Essential oils like lavender and chamomile can help promote relaxation and improve sleep quality. Studies have shown that inhaling these oils before bedtime can lead to better sleep.
  4. Boosting Immunity: Essential oils like tea tree, eucalyptus, and thyme have antibacterial, antiviral, and antifungal properties that can help boost the immune system and prevent infections.

Safety Considerations

While aromatherapy is generally safe when used properly, there are some safety considerations to keep in mind. Essential oils are highly concentrated and can be toxic if ingested in large quantities.

They can also cause skin irritation or allergic reactions in some people. It is important to dilute essential oils before using them topically and to use them under the guidance of a qualified aromatherapist.

Humidifier vs Diffuser FAQs


To sum up what has been covered about Humidifier vs Diffuser in this Cleaners Advisor guide: The choice between a humidifier and a diffuser comes down to your personal preferences and needs.

Humidifiers and diffusers are both great devices that can improve the air quality in your home. Humidifiers add moisture to the air, while diffusers release essential oils into the air.

If you’re looking for relief from dry air, a humidifier is a great option. If you’re interested in the therapeutic benefits of essential oils, a diffuser is a way to go. Whichever device you choose, be sure to follow the manufacturer’s instructions for proper use and maintenance.