• 10 Best Essential Oil Diffusers UK 2021 1
  • 10 Best Essential Oil Diffusers UK 2021 2
  • 10 Best Essential Oil Diffusers UK 2021 3
  • 10 Best Essential Oil Diffusers UK 2021 4
  • 10 Best Essential Oil Diffusers UK 2021 5

10 Best Essential Oil Diffusers UK 2021

Scent can really influence our mood and the vibe of the room, so it's no wonder so many of us are looking to buy an oil diffuser. Essential oils are known for their holistic properties, so whether you want to drift off to sleep, evoke calm, or focus on some work, you can fill up your diffuser with the appropriate aroma to help you get there, whilst also clearing and humidifying the air. 


Our buying guide and recommendations are here to find your dream diffuser, be it a compact design to step up your bedroom nesting game or a colour-changing device to boost your energy as you study. We've scoured Amazon and eBay for the best prices and reviews to bring you the top 10 diffusers on the market, including trusted brands like Muji, VicTsing and ASAKUKI. Total harmony guaranteed!

  • Last updated: 17-03-2022
Table of Contents

Compare the Best Essential Oil Diffusers

For those after a quick look, here is our Top 5:


  1. Asakuki - Essential Oil Diffuser for £26.34
  2. Cavir - Ultrasonic Aromatherapy Fragrant Oil Vaporizer for £26.99
  3. InnoGear - Ultrasonic Humidifier for £19.99
  4. Tomnew - Cool Mist Aroma Diffuser for £26.99
  5. XCXP - Aromatherapy Humidifier for £21.66

For a more in-depth look at the comprehensive top 10 selection, make sure to read on to learn more about the different types of diffusers available and understand how our ranking was determined.

Image
1
ASAKUKI Essential Oil Diffuser 1

ASAKUKI

2
Cavir  Essential Oil Diffuser 1

Cavir

3
InnoGear Essential Oil Diffuser 1

InnoGear

4
Tomnew Essential Oil Diffuser 1

Tomnew

5
XCXP Essential Oil Diffuser 1

XCXP

7
Salking Direct  Aromatherapy Diffuser 1

Salking Direct

9
CkeyiN Mini Essential Oil Diffuser 1

CkeyiN

10
Muji Aroma Diffuser 1

Muji

Name

Essential Oil Diffuser

Essential Oil Diffuser

Essential Oil Diffuser

Essential Oil Diffuser

Essential Oil Diffuser

Aromatherapy Diffuser

Mini Essential Oil Diffuser

Aroma Diffuser

Features

A Vaporiser, Humidifier, Timer and Lamp All in One!

A User-Friendly, Stylish Design With a Range of Safety and Light Features

Prevent Dry Skin and Clean the Air With This Powerful, Yet Silent, Diffuser

An Elegant Option With a Large Capacity and Multiple Features

A Long-Lasting Diffuser That’s Eco-Friendly and Contains a Bunch of Exceptional Features

An Exquisite Middle-Eastern Inspired Piece to Add a Touch of Elegance to Your Home

The Portable and Compact Diffuser, Ideal for Smaller Spaces

If Minimalist, Simple and Sophisticated Is Your Thing, This Could Be Just the Ticket!

Price£26.34£26.99£19.99£26.99£21.66£27.98£16.39£56.38
ShapePear-shapedPear-shapedCylindricalPear-shapedPear-shapedCylindricalCylindricalCylindrical
Capacity300ml400ml150ml400ml400ml260ml90ml100ml
Best Suited ForMedium to large spacesLarger spacesSmaller spacesLarger spacesLarger spacesSmall to medium spacesSmall spacesSmall spaces
Light Features7 colours, gradual cycle or single colour7 colours, gradual cycle or single colour7 colours, gradual cycle or single colour7 colours, gradual cycle or single colour as well as bright and dim modes7 colours, gradual cycle or single colour7 colours, gradual cycle or single colour 7 colours, graducal cycle or single colourOne ambient glow (high/low/off)
Timer SettingsStable, 1, 3 or 6 hoursStable, 1, 3 or 6 hours3 hours or low power sleep mode for 6-9 hoursStable, 1, 3 and 6 hoursStable, 1, 3 hours or 6 hoursStable, 1, 3 and 5 hoursNo timer 30, 60, 120 and 180 mins
Waterless Auto Off FeatureYesYesYesYesYesYesYesNo
BPA-FreeYesYesNoNoYesYesYesNo
Uses PP MaterialsYesYesYesNoYesYesNoNo
Link

How to Choose an Essential Oil Diffuser in the UK

Key Points to Consider

  1. Pick a Diffuser Depending on Your Room Size
  2. Consider the Atmosphere You Want - Relaxing Glow or Energetic Multicolored Effects
  3. Look at Timer Settings to Determine Run Time
  4. Ensure Safety with Diffusers Made from the Best Polypropylene (PP) Materials

Benefits of an Oil Diffuser

Benefits of an Oil Diffuser

In short, an oil diffuser is a device that disperses essential oils into the air for wellness and atmospheric purposes. Different oils create different effects – for example, lavender helps with relaxation and supports sleep. In this buying guide, we'll be focusing on the most common variety, ultrasonic diffusers.


Once you dilute your oil of choice with water and add it to an ultrasonic device, it emits vibrations that break up the oil molecules into smaller particles, which in turn create a mist. This also means they act as humidifiers, adding moisture to the air which can be beneficial for clearing pollutants and improving your skin during the cold and dry seasons. 


Ultrasonic diffusers are efficient, great value and include extra functions such as an ambient light that doubles as a lamp and a safety waterless auto-off function. Perfect for helping you achieve peace and calm in your home!


For an even calmer atmosphere, check out these Himalayan salt lamps that have air purifying, allergy soothing, and mood boosting capabilities.

1. Select a Diffuser Based on Room Size: 300-400ml Works for Large Spaces, 100-200ml Works in Compact Spaces

1. Select a Diffuser Based on Room Size: 300-400ml Works for Large Spaces, 100-200ml Works in Compact Spaces

Start your search with the capacity of the reservoir, which you can determine by both the size and the shape of the diffuser. Pear- or teardrop-shaped devices often have the roomiest reservoirs of 300-400ml (which will be necessary to provide fragrance to larger spaces), whereas cylindrical shapes will usually fall in the region of 100-200ml. In general, a larger capacity lasts longer between refills and emits more mist. 


But these aren't the only factors – it's also a largely stylistic choice, depending on personal taste and how well each will suit your space. For example, a larger diffuser works well if you're after a focal showpiece, whilst a more compact diffuser can be a delicate and subtle addition to a bedroom or smaller room.

2. Pick Your Style: A Muted Glow Provides a Relaxing Atmosphere, but Multicoloured Rainbow Effects Produce an Energetic Vibe

2. Pick Your Style: A Muted Glow Provides a Relaxing Atmosphere, but Multicoloured Rainbow Effects Produce an Energetic Vibe

Essential oil diffusers have come a long way in terms of style, and it's now possible to find ones with several different colours of LED lights, and often with brightening and dimming options, too. This gives you the choice between a single tone of light or several changing colours that produce a rainbow effect, which can help set a more energetic mood.


Whilst it's fantastic to have such intricate options available, multicoloured lights aren't for everyone – some of you may favour a warm, natural glow that suits your furniture and living space without demanding too much attention. Luckily there is something for everyone, and, of course, in our top 10 recommendations!


Want more fancy lighting options for your room? Check out our top picks for fairy lights!

3. Timer Settings Run From 30 Minutes to 6 Hours, Depending on the Size and Brand of the Diffuser

3. Timer Settings Run From 30 Minutes to 6 Hours, Depending on the Size and Brand of the Diffuser

Most diffusers come with timers, which simply determine how long you want them to stay on for before shutting off. On the whole, smaller devices will work for 30 to 180 minutes, whilst others can diffuse your oils all the way up to 6 hours. This can vary from brand to brand, so is worth taking note of. 

4. The Safest, Most Eco-Friendly Diffusers Feature an Auto-off Function and Are Made From High-Grade Polypropylene Materials

4. The Safest, Most Eco-Friendly Diffusers Feature an Auto-off Function and Are Made From High-Grade Polypropylene Materials

The safest diffusers out there have a low voltage current, an auto-off function for when the water runs out, and are made with the best polypropylene (PP) materials, which have a high heat resistance and act as a barrier to moisture. You can also look for BPA-free products, which are both non-toxic and environmentally-friendly.


There are many diffusers on the market made with the same ultra-high grade, safe, and eco-friendly materials that baby bottles are made from. This is not only a desirable choice if the diffuser will be used in a family home, but for those who want a safe option that can be used long term.


Looking for Eco-friendly gift options? These sustainable gifts will do the trick!

10 Best Essential Oil Diffusers in the UK

This ranking has been compiled by the writing team at mybest UK via careful evaluation of the points made in the buying guide and thorough research of each product and comparing multiple verified customer reviews across the EC sites used.

1

ASAKUKIEssential Oil Diffuser

Wood Grain

£26.34

ShapePear-shaped
Capacity300ml
Best Suited ForMedium to large spaces
Light Features7 colours, gradual cycle or single colour
Timer SettingsStable, 1, 3 or 6 hours
Waterless Auto Off FeatureYes
BPA-FreeYes
Uses PP MaterialsYes
2

Cavir Essential Oil Diffuser

Marble Design

£26.99

ShapePear-shaped
Capacity400ml
Best Suited ForLarger spaces
Light Features7 colours, gradual cycle or single colour
Timer SettingsStable, 1, 3 or 6 hours
Waterless Auto Off FeatureYes
BPA-FreeYes
Uses PP MaterialsYes
3
InnoGear Essential Oil Diffuser 1

InnoGearEssential Oil Diffuser

Basic White

£19.99

ShapeCylindrical
Capacity150ml
Best Suited ForSmaller spaces
Light Features7 colours, gradual cycle or single colour
Timer Settings3 hours or low power sleep mode for 6-9 hours
Waterless Auto Off FeatureYes
BPA-FreeNo
Uses PP MaterialsYes
4

TomnewEssential Oil Diffuser

Porcelain Design

£26.99

ShapePear-shaped
Capacity400ml
Best Suited ForLarger spaces
Light Features7 colours, gradual cycle or single colour as well as bright and dim modes
Timer SettingsStable, 1, 3 and 6 hours
Waterless Auto Off FeatureYes
BPA-FreeNo
Uses PP MaterialsNo
5
XCXP Essential Oil Diffuser 1

XCXPEssential Oil Diffuser

Wood Grain

£21.66

ShapePear-shaped
Capacity400ml
Best Suited ForLarger spaces
Light Features7 colours, gradual cycle or single colour
Timer SettingsStable, 1, 3 hours or 6 hours
Waterless Auto Off FeatureYes
BPA-FreeYes
Uses PP MaterialsYes
7

Salking Direct Aromatherapy Diffuser

£27.98

ShapeCylindrical
Capacity260ml
Best Suited ForSmall to medium spaces
Light Features7 colours, gradual cycle or single colour
Timer SettingsStable, 1, 3 and 5 hours
Waterless Auto Off FeatureYes
BPA-FreeYes
Uses PP MaterialsYes
9

CkeyiNMini Essential Oil Diffuser

£16.39

ShapeCylindrical
Capacity90ml
Best Suited ForSmall spaces
Light Features7 colours, graducal cycle or single colour
Timer SettingsNo timer
Waterless Auto Off FeatureYes
BPA-FreeYes
Uses PP MaterialsNo
10

MujiAroma Diffuser

£56.38

ShapeCylindrical
Capacity100ml
Best Suited ForSmall spaces
Light FeaturesOne ambient glow (high/low/off)
Timer Settings30, 60, 120 and 180 mins
Waterless Auto Off FeatureNo
BPA-FreeNo
Uses PP MaterialsNo

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Written and researched by Melanie McPhail

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