
A diffuser is different to an oil burner because a diffuser doesn't heat the essential oil. It uses either air or a reaction between a metal plate in the diffuser, the water and the essential oil to create a fine mist that not only looks fantastic, but gives greater therapeutic value because there is no heat present to damage the tiny molecules of essential oil.
So which diffuser is best? I have reviewed four diffusers that are currently available - nebulising diffuser, ultrasonic diffuser, home diffuser and aria diffuser. Let's compare...
Nebulising Diffuser

This diffuser uses a lot of essential oil, but the therapeutic benefits are extremely high. The pump is as noisy as a fish pump, so can be a bit much if you want a relaxing atmosphere. I used this diffuser a few years ago when I had glandular fever and I was back at work in four days! Most people take weeks and months to recover. I highly recommend this diffuser for therapeutic value which in my opinion outweighs its odd look and noise.
My Rating for the Nebulising Diffuser (out of 5 stars)
Aroma Coverage: ★★★★★
Therapeutic Value: ★★★★★
Ease of Use: ★★★★★
Noise Level: ★
Appearance: ★★★
Ultrasonic Diffuser

The ultrasonic diffuser uses water and essential oil and relies on a metal plate on the bottom of the unit to convert this into a cool mist. Amazing chemistry at work! It does have a bit of a "spaceship" appearance--the lights come on when in use. You can turn the lights off if you are going to use it while sleeping. This diffuser has an automatic shut off when the water gets low making it ideal for night time use. I recommend that every household should have at least one of these diffusers. The ultrasonic diffuser only needs between 6-10 drops of essential oil. They can be used overnight (and lasts all night on setting "4") for sick kids (or adults), creating atmosphere, and uplifting mood. Try it, you will NEVER go back to an oil burner again!
My Rating for the Ultrasonic Diffuser (out of 5 stars)
Aroma Coverage: ★★★★★
Therapeutic Value: ★★★★★
Ease of Use: ★★★★
Noise Level: ★★★★★
Appearance: ★★★
Home Diffuser

My Rating for the Home Diffuser (out of 5 stars)
Aroma Coverage: ★★★½
Therapeutic Value: ★★★★
Ease of Use: ★★★★
Noise Level: ★★★★★
Appearance: ★★★★★
Aria Diffuser

You may want to have a look at this short video which shows just how easy it is to use and how awesome this diffuser is.
I highly recommend the Aria Diffuser if you want the full experience of the senses--soothing sights, relaxing sounds and beautiful aromas. It doesn't get better than this!
My Rating for the Aria Diffuser (out of 5 stars)
Aroma Coverage: ★★★★★
Therapeutic Value: ★★★★★
Ease of Use: ★★★★★
Noise Level: ★★★★★
Appearance: ★★★★★
Like to get a diffuser? You can find more information about purchasing diffusers at my store.
You can also contact me if you would like more information about diffusers or essential oils. I look forward to hearing from you.