Ultimate Guide to Ultrasonic Diffusers: The Art of Aromatherapy

Transform your space into a destination of relaxation.

Welcome to the soothing world of aromatherapy, where the subtle art of diffusing essential oils can transform your living space into a serene haven. As an expert in aromatherapy, we are here to guide you through the wonders of ultrasonic diffusers and how they can enrich your daily life. Let's dive into the essentials of choosing and using these incredible devices effectively.

What is an Ultrasonic Diffuser?

Ultrasonic diffusers are a type of essential oil (or fragrant oil) diffuser used to create a fine mist that disperses tiny molecules of essential oil into the air.

This type of diffuser uses electronic frequencies to cause a small disk under the surface of a liquid (usually water mixed with essential oils) to vibrate at a very fast rate. These vibrations break the essential oil into tiny particles, dispersing the oil in a fine mist and releasing the aromatic properties into the air without using heat.

Basically, a little kettle that doesn’t heat the water but vaporises it.

'Natalia' Black - Ultrasonic Moodmist Diffuser

The Benefits of Using an Ultrasonic Diffuser

  • Therapeutic Aromas: Diffusers allow you to enjoy the full therapeutic benefits of essential oils, such as lavender for relaxation or eucalyptus for respiratory health.
  • Humidifying Properties: Since they use water to disperse the oils, ultrasonic diffusers also help to increase indoor humidity, which can be beneficial in dry climates or dry seasons.
  • Energy Efficient: These diffusers use electronic frequencies, so they don’t require a lot of electrical power.
  • Safe and Quiet: They are quiet and safe to use, especially compared to diffusers that use heat, making them ideal for use in homes, yoga studios, and offices.

Crafting a unique fragrance experience will vary according to your mood, personal taste and intended purpose. Selecting the perfect scent is a journey of exploration.

Australian Made: Wind Down - Eucalyptus & Lemon Myrtle

Australian Made: Quiet Morning - Orange & Kakadu Plum

How to choose the right Ultrasonic Diffuser

Trying to find the right diffuser is much about the visual aesthetics as it is about its function.
(Luckily... all our dusk Ultrasonic Diffusers are beautiful and functional.)

  • Room Size: Check the coverage area of the diffuser. Smaller diffusers are sufficient for your WFH space or bedroom, while larger spaces like your living room or office, might require a diffuser with a bigger capacity. Each of our diffusers come with a capacity guide - be sure to check that out when considering your Ultrasonic Diffuser selection.
  • Water Capacity: Larger water capacity means the diffuser can run longer. Depending on your needs, choose a diffuser with a tank that provides enough runtime without constant refills. 
  • Material Quality: Our Ultrasonic Diffusers are made from the highest quality materials. Select from our resin diffusers, ceramic diffusers or glass diffusers.
  • Timer and Output Settings: Some diffusers come with adjustable settings that allow you to control how much mist is emitted and for how long.
  • Lighting and Extras: Many diffusers come with added features such as LED lights, which can enhance the mood or double as a nightlight.

Setting Up Your Ultrasonic Diffuser

  • Location: Place your diffuser in a central part of the room, away from direct sunlight and electronic devices that could be affected by moisture. Always ensure your diffuser is sitting on a plate to avoid any condensation forming on the base.
  • Water and Oils: Fill the diffuser’s tank with clean water as directed, typically up to a marked fill line. If you have purchased a Ultrasonic MoodMist Diffusers from dusk, we always recommend using our MoodMist Fragrant Oils and Essential Oils as they have been designed to maximise the life of your diffuser.
  • Caring for your Ultrasonic Diffuser: We recommend cleaning your diffuser ever 2-3 days (depending on how frequently you use it). Using a clean damp cloth, add a dab of mild dishwashing soap and wipe your tank to ensure no oil buildup. Do not submerge your diffuser in water and ensure when cleaning you have unplugged it from the wall and let it dry completely before you plug it in again.

Embracing the practice of aromatherapy through an ultrasonic diffuser is a delightful way to enhance your environment and well-being. With the right diffuser, you can enjoy the myriad benefits of essential oils effortlessly and safely.

Whether you’re seeking relaxation, mood enhancement, or a health boost, there’s an oil and diffuser waiting to transform your space and uplift your life.


Yes, the difference between an Aromatherapy Diffuser and an Ultrasonic Diffuser is water. Aromatherapy diffusers disperse essential oils without the use of water.