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Best Aroma Diffusers: Shopping Guide & Review

Best Aroma Diffusers: Shopping Guide & Review
Updated 16 November 2021

Research has shown that aroma diffusers can be great for improving your mood, sleep, and even overall health - but it's important to find the right one. In this article we will show you which options are available to you on Amazon and what you should pay attention to when buying.

If you don't already have one, you need to get an aroma diffuser ASAP! They're sometimes also known as essential oil diffusers, and essentially they disperse the essential oils in a room to fill it with their aroma. There are multiple types of different aroma diffusers available, and they come with many benefits. For example, aroma diffusers can be great for helping sleep, making your mood better, and even your overall health.

But where do you even start with finding the right aroma diffuser? That's where we have you covered! Our guide will teach you everything you require to look out for when buying a new aroma diffuser - down to the last detail! From the different types to even added safety features, you'll be enjoying aromatherapy in no time! Just read on!

Aroma Diffuser Comparisons: Reviews and Recommendations

We've compared the different aroma diffusers available on Amazon. Here are the top ones we chose, reviewed and recommend to you.

This eye-catching aroma diffuser features LED lights in seven different colours. You can choose to let the colours cycle through automatically, or you can pick your favourite colour and programme it to stay steady.  It comes with two mist modes, so you can either choose a constant mist or an intermittent mist.

You can easily and safely use it all night long thanks to its large tank capacity, auto-shutoff for safety, and whisper-quiet operation. To use, simply fill the water tank, add a few drops of essential oils, and turn it on.

This very stylish aroma diffuser has a gorgeous wood-look base with a translucent dome on top, giving it a high-class minimalist look, perfect for any design aesthetics. It has seven different soft colours that can change automatically or stay steady, depending on your preferences, and four different timer options.

You can use this diffuser to mist for up to 16 hours thanks to its large 500ml water tank and two different mist modes. It boasts a quiet operation, is BPA free, and has an automatic safety switch that will turn off when it runs out of water.

This aroma diffuser is made from a glass material, which has a 3D fireworks pattern in a vase design. This is the perfect solution if you want a diffuser that also has a contemporary design. This diffuser is also great as a night lid and humidifier! The diffuser is also super quiet and uses adopted ultrasonic technology to create vapour without any heat. This method is actually best because it preserves the integrity of the essential oils. It will also shut off automatically when it detects no more water, so it'll save electricity. There are also timer modes - 0.5/1/2/3 hours.

RRP: £39.99 Details
This is the retail price by the manufacturer or importer of the product. Amazon confirms the relevance of this RRP, on a quarterly basis, compared to prices charged by at least one competitor or Amazon.
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£28.04 FREE Delivery in the UK.

Best High-Tech Aroma Diffuser

This Wi-Fi-enabled aroma diffuser can be controlled either with a smartphone app or by a smart home assistant, allowing you to choose the colour and misting level, even from a distance.
This smart aroma diffuser uses modern technology to supercharge your essential oil game. It is Wi-Fi enabled, can be controlled with a free smartphone app, and can also be operated with your favourite smart home assistant if you prefer a hands-free approach.

It comes with seven different LED mood lights that can change automatically according to your preferences and has a four-setting timer. Furthermore, it is safe to use with its low-voltage power, eco-friendly and non-toxic construction and is very energy efficient.

This aroma diffuser uses ultrasonic technology to help you sleep better, which is also ultra-quiet and releases a smooth mist. This diffuser even comes with timer settings (1/3/6 hours), and has a capacity of 300ml.

The diffuser also works as an ideal nightlight, with 7 different LED light options, ranging from red to blue and even cyan. This makes it the perfect solution to creating a soothing atmosphere, which can help your health and sleep. Also, once this diffuser hits no water - it'll automatically turn off, so it's safer!

Aroma Diffusers: Shopping Criteria

What type of diffuser do you want? What about extra safety features? There are multiple different factors to consider when looking for a new aroma diffuser, and we're here to teach you all about it! That's why we've created this list of shopping criteria.

  • Size
  • Safety Features
  • Extras


When it comes to buying a new aroma diffuser, the size is important. The size will usually determine the volume capacity, which means how many essential oils you can put in the machine at once, as well as how long it'll last.

Generally, we always recommend the bigger is better. This is because the bigger the volume capacity, the less you'll need to replace the oils inside the diffuser and the longer it'll last. We also recommend thinking about where you're going to use the aroma diffuser and if it'll fit where you want to place it. The last thing you want is an aroma diffuser that's too big and awkward, especially if you plan to carry it around.

Always check the dimensions of the aroma diffuser you're interested in, which should be listed on the product page. If you want a portable aroma diffuser, we recommend getting one that is a bit more compact and made with lighter materials.

Safety features

Added safety features are important to look out for when shopping for a new aroma diffuser. We recommend getting an aroma diffuser that will automatically shut off when it runs out of water. This will also save you when it comes to energy use too! We also recommend looking at ultrasonic aroma diffusers too, this is because it doesn't use heat to disperse the essential oils.


When shopping for a new aroma diffuser, we recommend keeping an eye out for any extra features. It's possible to get aroma diffusers that are multifunctional, and also work as a night light. They are usually powered by LED and some even let you choose between different colours. Not only is this cost-effective, it's also space-efficient! We also recommend looking for aroma diffusers that come with other features, like a timer - so you can set the diffuser to shut down after a certain period of time. Some diffusers will even tell you when it needs to refill using a light indicator! Whilst these extra features aren't essential, they are great for the quality of life.

Shopping Guide: Everything You Should Know About Aroma Diffusers

Research has shown that aroma diffusers can be great for improving your mood, sleep, and even overall health - but it's important to find the right one.

Along with being practical, aroma diffusers can bring a touch of style too! They come in a wide range of different designs and colours, all which can really make or break a room. (Unsplash - Felicia Buitenwel)
That's why we've come up with this list of questions! To help you find the perfect aroma diffuser for your home and health.

What is the average cost of an aroma diffuser?

The price of an aroma diffuser will depend on different factors like the type and extra features.

Generally, though, the cost will range between £15 - 30. Aroma diffusers are well worth the price, and a great way to create a therapeutic environment.

How do aroma diffusers work?

Great question! There are actually multiple types of aroma diffusers which all work differently, but we'll cover the most common type - ultrasonic diffusers. They use electronic frequencies to vibrate, creating an effect similar to boiling water (without any heat) which breaks down any essential oils and disperses them into the air as a fine mist. This fine mist fills the room with the aroma and fragrance of the oil, which can provide benefits.

Are there any health benefits to using aroma diffusers?

This really depends on the essential oil placed in the aroma diffuser. For example, oils like lavender or chamomile can help you relieve stress and get better sleep. However, some people claim that aroma diffusers can even help with relieving headaches or soothing any sore muscles. We recommend doing research into the essential oils you plan to use and seeing if there are any health benefits.

What are some essential oils you can get for diffusers?

There are so many types of essential oils - where do we even start? Each essential oil will have its own purpose, and it's good to do your own research, so you can figure out which one is best for your situation. For example, if you're having a problem sleeping - lavender is a great essential oil to help with that. Lavender is well known for its properties that can help ease you into sleep.

Just to name a few, here are some essential oils you can find: chamomile, rosemary, rose, ginger, orange, peppermint, basil and even spearmint! If there's a fruit, herb or plant - there is more than likely an essential oil for it!

The publisher earns affiliate commissions from Amazon for qualifying purchases. The opinions expressed about the independently selected products mentioned in this content are those of the publisher, not Amazon.

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