Best diffusers in Australia 2026

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Asakuki Essential Oil Diffuser

Best overall diffuser

• Multiple adjustable features

Cons

• Noisier than other diffusers
• Unclear set-up instructions

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We picked the Asakuki Essential Oil Diffuser as the best overall diffuser. It has a rating of 4.6 out of 5 stars on Amazon.

This ultrasonic essential oil diffuser is packed with heaps of features to add some Zen to your home. It has an easy-to-clean 500ml water tank, 7 different light colours and various mist nebuliser modes. In weak mist mode, the tank lasts up to 16 hours. There are also 4 timer options: 60, 120, 180 or continuously on. It covers up to 25-30sqm of space as well.

Customers praised the product's excellent value for money, durability and performance. It has an automatic shutoff feature for safety when the tank runs out of water, which is ideal if you plan to use the diffuser overnight. Its 500ml tank also means you won't need to refill as often. However, several users found the instructions quite vague, which made setting up a lot longer than it should be.

Cocod'or Preserved Real Flower Reed Diffuser

Best reed diffuser

• Long-lasting and aesthetically pleasing

Cons

• Some variants smell quite artificial according to users
• Reed sticks need frequent replacement

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For the best reed diffuser, we recommend Cocod'or's Preserved Real Flower Reed Diffuser, which has a rating of 4.3 out of 5 stars on Amazon.

Cocod'or's Persevered Real Flower Reed Diffuser comes in an elegant glass bottle with multiple reed sticks and 200ml of fragrance to freshen your home. The brand says it takes 1 or 2 days for the sticks to soak in the scent and disperse a lovely aroma in your preferred area. When the scent weakens, you simply have to turn the reed sticks upside down or replace them with new ones. This diffuser comes in various scents, including pure cotton, black cherry and garden lavender.

Apart from being aesthetically pleasing and affordable, customers raved about the product's longevity, pleasant scent and ease of use. It's one of those products that you just set and forget, making it ideal if you have a busy lifestyle or are not too keen on frequently refilling a diffuser's water tank. Several buyers said the scent is overpowering at first but settles into a mild fragrance after a couple of days. The reed sticks need to be replaced every couple of days but this seems to be a minor issue for most buyers.

The Goodnight Co. Ceramic Essential Oil Diffuser

Best ceramic diffuser

• Comes in 3 colours

Cons

• Not cheap
• Doesn’t include any oils

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The Goodnight Co. Ceramic Essential Oil Diffuser has a rating of 4.6 out of 5 stars from more than 60 Google reviews and a rating of 4.8 out of 5 stars from more than 50 The Goodnight Co. customers.

This sleek ceramic diffuser uses ultrasonic technology to diffuse mist. It doesn't heat up, which makes it suitable for use around children and pets.

The water tank holds 100mL and can run continuously for 3-4 hours. When the water runs out, the machine automatically turns off so you can set it to run when you get in bed and it will turn off automatically while you sleep.

This diffuser has an included light with both soft and bright settings. It comes in 3 different colours: white, black and grey to suit any decor. It also comes with a 12-month warranty.

HoMedics Ellia Gather Ultrasonic Aroma Diffuser

Best ultrasonic diffuser

• Made of durable ceramic and wood materials

Cons

• Shorter run time compared to other diffusers
• Only 200ml tank capacity

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With a rating of 4.3 out of 5 stars on Amazon, we selected the HoMedics Ellia Gather Ultrasonic Aroma Diffuser as the best ultrasonic option.

Crafted from ceramic and wood, HomeMedics' Ellia Gather Ultrasonic Aroma Diffuser has a 200ml tank to deliver a fine mist to your home. It can work continuously for up to 10 hours, but the brand claims it can last up to 20 hours when used intermittently. It also features 7 colour-changing lights and 6 relaxing sounds. Additionally, you'll get a handy remote control, allowing you to modify the setting with ease.

This ultrasonic diffuser produces a strong yet fine mist that can fill any space with aroma in no time. It also has various sound settings to help you relax after a long day. In addition to being stylish, customers love that it has a remote control for convenience. The lights aren't too bright either. However, the 200ml tank means frequent refilling if you plan on using the diffuser all day.

dōTERRA Petal Essential Oil Diffuser

Best evaporative diffuser

• Made of durable material

Cons

• Too noisy for some
• Several users found the lid tricky to remove after multiple uses

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For the best evaporative option, we picked the dōTERRA Petal Essential Oil Diffuser. On Amazon, it has a rating of 4.4 out of 5 stars.

This evaporative diffuser is a user-friendly option that can cover up to 30sqm of space. It has 3 timed settings – 1, 2 and 4 hours – allowing you to modify the release of aroma into the air. It also produces a fine yet substantial mist to create a relaxing ambience at any time. Additionally, it has a 250ml water tank and an automatic shutoff feature for peace of mind.

Despite being smaller than competitors, customers said this diffuser packs a punch. It releases a strong mist that can cover a huge space without needing frequent refills. The 3-piece components are easy to remove for quick refills, too. It also has optional LED lighting that can add to the diffuser's relaxing effect. One thing to note, however, is that it doesn't have a quiet operation. This may be a con if you plan to use the device for a good night's sleep.

Singeek Ceramic Tea Light Essential Oil Burner

Best heat diffuser

• Won’t break the bank

Cons

• Tea light burns out after less than 3 hours
• Requires frequent oil and water refill

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With a rating of 4.6 out of 5 stars on Amazon, our choice for the best heat diffuser is the Singeek Ceramic Tea Light Essential Oil Burner.

This heat diffuser features a natural bamboo wood and ceramic design that looks sleek and stylish. It has a ceramic bowl where you can pour about 2/3 of a cup of water and 5-8 drops of your favourite essential oil. It has a small candle holder for a tea light, which warms up the essential oil and water mix to diffuse aroma into the room.

Customers praised the product's sophisticated yet functional design, ease of use and value for money. If you're new to essential oil diffusers, this is a great option to start with. While it doesn't have the bells and whistles of electric options, it helps create a relaxing, spa-like atmosphere in any space. Users said it releases a powerful aroma that lasts for hours. However, the tea light usually burns out after two and a half hours. You also need to refill the bowl with the oil and water mix after 4-6 hours.

Organic Aromas Mobile-Mini Wireless Rechargeable Nebulising Diffuser

Best car diffuser

• Wireless and rechargeable

Cons

• There are cheaper options in the market
• Automatically shuts off after 2 hours

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Our pick for the best car diffuser is Organic Aromas' Mobile-Mini Wireless Rechargeable Nebulising Diffuser, which has a rating of 4.0 out of 5 stars on Amazon.

Organic Aromas' Mobile-Mini Wireless Rechargeable Nebulising Diffuser is a wireless and rechargeable device that can cover a small office or car. It weighs 440g and is powered by 2 lithium batteries that the brand claims last up to 18 hours when fully charged. The diffuser doesn't use heat or water, so you won't need to refill any tank when you're on the road. It uses air to release a concentrated scent into your space.

Customers gave positive feedback on the diffuser's compact design, ease of use and durability. It looks quite sleek but small enough to fit in any corner of a car. It also releases a strong scent that lasts for hours, according to users. However, it has a shorter diffusing cycle compared to more traditional choices. It operates for 2 minutes, then off for 1 minute. This continues for 2 hours before it automatically shuts off.

Methodology

Why you can trust our picks

We considered the following brands of diffusers:

• Arovec
• Asakuki
• Cocod’or
• Craft & Kin
• Culture & Nature
• dōTERRA
• Earnest Living
• HoMedics
• Kurrajong Farmhouse
• Levoit
• Loloc
• Lonessl
• Minidiva

• MOR
• Muson
• Neom Organics
• NEST
• Oregon
• Organic Aromas
• Scentcares
• Singeek
• To Be Calm
• Touche
• Vytal
• Wax Lyrical

For this list, we carefully picked products with the highest customer ratings on Amazon. We ended up with a total of 86 diffusers to compare.

We then researched each product and its features. We also considered ratings and customer reviews on Amazon. We came up with what we believe are the 9 best diffusers available online.

Frequently Asked Questions

How do you clean an oil diffuser?

Unplug your diffuser and empty it according to the manufacturer's guide. Fill it halfway with water and 1 teaspoon of vinegar. Turn it on for about 10 minutes. Empty the diffuser again.

Wipe down the water reservoir's surface with a cloth damped with a water and vinegar solution. Use a cotton swab with the same mixture to wipe down delicate and hard-to-reach areas.

Let the entire unit dry before use.

Are essential oils safe for pets?

While a pleasant-smelling essential oil may seem harmless, some varieties can be harmful to your beloved pets. Eucalyptus oil, cinnamon, peppermint, tea tree and ylang-ylang are toxic to pets.

Other essential oils to avoid around pets are basil, clove, garlic, geranium, juniper, lavender, oregano, rosemary, spruce and thyme.

Consult your vet to know about essential oils and how to safely use them around your furry friend.

How often should I replace my diffuser's filter?

You need to replace the filter every 5 uses or every month, depending on how often you use the diffuser. Weekly cleaning is also recommended to prolong the device's lifespan.

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