Essential Oils & Diffusers

Leading Ultrasonic Diffusers For Aromatherapy And Healing

Relieve headaches

In previous posts on this blog we’ve talked about some of the essential oils, their qualities, what they are used for and how they are used. To name a few, we explored the use of camphor, eucalyptus, peppermint, tea tree and other essential oils. This time I am deviating slightly from the essential oils themselves and reviewing the different types of diffusers for aromatherapy and healing.

The main four types are ultrasonic, nebulizer, evaporative and heat. There is one other type that is usually overlooked; that is the clay terracotta diffuser designed as brackets, necklaces or as discs to be hung in the closet or the car. We ladies also place them in drawers to keep a nice fresh smell. See car diffuser below.

From those five types listed I like the ultrasonic diffuser best for various reasons. I received one recently as a birthday gift and loved it. Then I decided to research to find a nice ultrasonic diffuser as a gift for someone else. My search was narrowed down to three devices and I’m sharing that limited information here with you.

Just to be clear, diffusers are devices or atomizers used in different forms to disperse the essential oils. It’s just a wonderful method by which the oil qualities can be absorbed more effectively for relief and healing. It’s also a safer way to get the benefits of essential oils, especially when treating babies and small children. Click for more information.

Essential Oil Roll On

I acknowledge the five different types of diffusers as follows but that is not my subject today:

  • Ultrasonic – Uses water and makes vapor through a process that vibrates the water until it evaporates.
  • Nebulizer – Doesn’t use water or heat. Heat breaks down the composition of the oil which makes it less effective. In addition, it allows the user to get the full effect of 100% pure oil without being diluted with water.
  • Evaporative – For this style diffuser the essential oil is dropped on a pad or filter then uses a fan to blow the air to cause evaporation of the oil.
  • Heat – As the name implies the heat diffuser uses heat to cause the oil to evaporate. Unfortunately, the heat is known to alter the chemical components of the essential oils leaving them less effective. But they are an alternative in a pinch.
  • Terracotta Clay – The terracotta clay diffusers are usually some form of porous clay disc. However, other porous discs are used as diffusers within decorative coverings such as this one shown below . Just put a drop or two of the essential oil of choice on the surface and it gets absorbed into the porous disc. The oil slowly evaporates and could last a few days. For best results add a drop of oil each day.

Now for the information on ultrasonic essential oil diffusers. The idea to write about the diffusers was born out of my own personal experience. I received a wonderful ultrasonic diffuser as a birthday gift last month and decided to go ahead and try it in case it needed to be returned. For a couple of weeks I was feeling tired and fatigue and decided to use the diffuser in my bedroom at night to help me rest better. My bedroom is about 250 sq ft and I wasn’t sure if it would be effective for the whole room. I gave it a try and I’m so glad I did; it makes such a wonderful difference in my rest and sleep.

I used eucalyptus oil the first night for relaxation and it worked. The second night I added tea tree oil as a preventive just in case I was coming down with something. For one week I continued the aromatherapy most of the night while I slept. It made an amazing difference in how I felt when I woke up each morning. By the end of the week I felt relieved of the stress and had my energy back. The number of essential oil sleep blends are off the chart but just know that they are available. If you need essential oils for sleep and relaxation or any other reason, save time and just buy the blend already prepared for you. They are categorized based on what the mixture will be used for.

I finally narrowed down my gift search to the following three Ultrasonic Diffusers. The driving features were water capacity, performance in a large space, doubles as humidifier, total running time, mist control and low water auto shut off. Then I considered lighting control and other minor features.


URPOWER 1000ml Essential Oil Diffuser Humidifiers
Reservoir capacity: 1000ml – Last all day
Space Coverage: 250 plus sq ft
Maximum Run Time: Up to 20 hours when filled to capacity
Choice of run time: 3 hours, 6 hours, or 9 hour settings
Intensity Control Switch: Yes
Doubles as humidifier: Yes
Light shut off switch: Yes
Low water auto shut off: Yes
Light Option: 7 color led lights
Remote Control: Yes

This unit has all the bells and whistles at a very reasonable price. This brand also markets a 500ml unit for customers who prefer a smaller diffuser. You couldn’t ask for a better reservoir capacity which is needed for large rooms and offices. Customer reviews indicate they have no problem with the size of the unit and they love the remote control. With this remote, you could easily turn on/off the light and mist when the oil diffuser is out of your reach.

It has 3, 6, and 9 hour timers and can be used all day without refilling. Customer reviews appreciate that it is an aromatherapy diffuser, doubles as a humidifier then triples as a single night light function with or without the mist. I personally love this diffuser and will be purchasing one for the entertainment area of my house.

Hrome 500ml Ultrasonic Essential Oil Diffuser
Reservoir capacity: 500ml
Maximum Run Time: 10 to 15 hours
Choice of run time: 30 min., 1 hr, 2 hrs, or 3 hrs
Intensity Control Switch: Yes
Doubles as humidifier: Yes
Noise Rating: Super Quiet
Light shut off switch: Unknown
Low water auto shut off: Yes
Remote Control: No
The Prome 500ml met the criteria for this review except for two minor things.

On the positive side it has a 500ml reservoir that allows you enjoy it’s soothing benefits for up to 10 hours. The timer may be set for 30 minutes, 60 minutes, 120 minutes or 180 minutes to create a calming, relaxation atmosphere. The Prome 500ml is extremely quiet and has an intensity control switch to control the amount of mist. It also has the automatic shut off switch when the water level runs low.

There were just two minor observations on the negative side for this diffuser. One, we could not determine if there is a light shut off switch for users who prefer sleeping in a dark room. And two, it does not have a remote control which would have been icing on the cake.

Even though this unit has a smaller reservoir than the URPower 1000ml, I could have easily chosen it for the gift. The only reason I dismissed this diffuser over the others was the woodgrain finish which I personally don’t care for.


Smiley Daisy Essential Oil Diffuser Humidifier

Reservoir capacity: 350ml
Maximum Run Time: 6 to 7 hours
Choice of run time: 2 hours
Intensity Control Switch: Yes
Doubles as humidifier: Yes
Noise Rating: Very Quiet
Light shut off switch: No
Low water auto shut off: Yes
Remote Control: No

This Smiley Daisy unit fell short in my ratings for my own use, but I chose this one for the gift I wanted to buy. The aesthetics were an important gift factor, as was the size and decorative qualities of the diffuser. Knowing the recipients health issues, I assumed the unit would be used in the bedroom.

This little beauty looks quiet, elegant, and un-intrusive in a bedroom setting. It is available in woodgrain but I didn’t care for that look. It doubles as a humidifier, there is a mist control button, auto shut off when water is low, and it runs very quietly. The water capacity will last about 6 hours which would almost get you through the night depending on how long you sleep. There is a button to control the mist to more or less.

On the down side this diffuser does not have a choice of run time settings, only one setting for 2 hours and the water reservoir is comparatively small to my other two choices. I really liked this particular Smiley Daisy unit as a gift and will probably buy it again.

In conclusion, the Ultrasonic Essential Oil diffuser is my number one choice for an essential oil diffuser type. For right now the UPPOWER 1000ml is my top pick Ultrasonic Essential Oil Diffuser from this limited research.


Your inquiries, comments and suggestions are always welcomed and appreciated.

Until next time I wish you joy and good health!