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SPA101WCA Ultrasonic Aromatherapy Essential Oil Diffuser by PureGuardian® Spa SPA101WCA Ultrasonic Aromatherapy Essential Oil Diffuser by PureGuardian® Spa
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SPA101WCA Ultrasonic Aromatherapy Essential Oil Diffuser by PureGuardian® Spa

Availability: In stock - USA and Canada SKU: SPA101WCA
MSRP: $39.99
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Product Information

The PureGuardian® Aromatherapy Essential Oil Diffuser uses ultrasonic technology.  It’s Simple! Just add a few drops of essential oils to the water and the ultrafine mist will quickly and continuously fill the room with the natural oil aroma. 

The diffuser is quiet and won't disturb you when you're sleeping.  Its fun design will add a pop of color to any room and the color changing night-light can be turned on or off.  It's lightweight and compact, making it great to put on small nightstands.  The 100ml water reservoir is BPA free and treated with Silver Clean™ Protection, which fights the growth of mold on the surface of the tank.  Purchase yours today!


Quiet and Efficient:

  • 5-6 hours of continuous operation
  • Ultrasonic Technology
  • Limited outlet energy required to run unit

Easy to Use:

  • No mess and no filter required
  • Easy to set up, operate and clean
  • On/Off power and light control


  • Automatic shut-off when empty
  • BPA Free

6-Color Changing Light:

  • Enjoy a continuous color-changing light

Mold and Mildew Resistant:

  • SilverClean Technology™ fights the growth of mold and mildew on the surface of the water reservoir

Additional Features:

  • The use of natural oils provides the senses with a pleasant aroma such as Eucalyptus, Peppermint or Lavender to welcome calming and relaxation
  • Light-weight and compact, making it easy to travel with
  • Ideal for a home, teen bedroom, dorm room, office, or hotel room
  • *This product is not intended to diagnose, treat, cure or prevent any disease.

Product Specifications

  • SKU: SPA101WCA
  • Weight: 0.6000lbs.
  • Dimensions: 4.37 x 4.43 x 7.88
  • Input Voltage: 110-240V AC, 50/60Hz
  • Bulb Wattage 24V DC, 12W
  • Construction: Plastic
  • Run Time: 5 - 6 Hours Continuous
  • Manual: SPA101WCA PDF Manual
  • To Operate:
    Select a firm, level, flat location - at least 6 inches (15 cm) from any wall or object for proper air flow. Place the diffuser on a water-resistant surface, as water can damage furniture and some flooring. Do not place directly on carpet, towels, blankets or other absorbant surfaces. Keep the unit away from any electonics sensitive to water.

    To Fill:
    Make sure unit is unplugged.

    1. Separate the top cover from the main body of the unit.
    2. Remove the inner water tank cover.
    3. Using standard tap water, use the measuring cup to fill the water into the water tank. DO NOT fill the water beyond the MAX level mark of measuring cup. Diffuser will not work if filled beyond the MAX level. Important: Do NOT attempt to fill water into the diffuser without removing the top cover.
    4. Add 3-5 drops of essential oil. Important: Avoid adding too many drops of oil.
    5. Return the inner water tank cover.
    6. Return the top cover.
    7. Connect the power adapter to the unit. Plug into electrical outlet.
    8. Press the power button to turn the diffuser on.

    The unit operates using Ultrasonic Technology:
    The advanced ultrasonic technology used produces vibrations at a high frequency, turning the water into mist, creating a soothing atmosphere.

  • How Do I Clean the Unit After Each Use?

    1. Turn the device OFF and unplug the unit from the electrical outlet. Lift off the top cover and the inner water tank cover.
    2. Drain and rinse the water tank thoroughly to remove any sediment and dirt. Wipe clean and dry with a clean soft cloth or paper towel.
    3. Remove water and clean the water tank after each use.
    IMPORTANT: Do NOT fill with HOT water as this may cause leaking. Remove the water from the tank when the diffuser is not in use.

    Are there any filters that need cleaned or replaced?
    No. There are absolutely no filters to clean or replace.

    Can the Essential Oil be used with any of the PureGuardian® Humidifers?
    NO. The essential oils should NOT be used with any of the Pureguardian® Humidifiers as the plastic needs to be specially treated for the oil. They are meant for use only with the PureGuardian® Aromatherapy Diffusers.

  • By completing this form, you agree to be automatically added to our marketing lists. We promise to respect your privacy. You can opt-out by clicking unsubscribe from any email you may receive from us.

    To read the full warranty, click here.

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By: FD Lady

Easy To Use & Works Wonderfully

I love this aromatherapy diffuser. It works & looks great wherever I decide to put it. I use it in my living room, bedroom & on my desk at work mostly & always get compliments on how great the room smells! Long run time, easy to use, great price.

By: Jimmy Moore

I'm an essential oil diffuser snob...and LOVE this one!

I've become a full-fledged essential oil nut replacing my household air fresheners with them. The best way to brighten up a room with rich, vibrant smells that cover up those everyday life odors is with a diffuser. I already own three other kinds of diffusers, so I'm a bit of a snob when it comes to these things.

This PureGuardian SPA101WCA Ultrasonic Cool Mist Aromatherapy Essential Oil Diffuser with Color Changing Light is about what you'd expect from a product like this. It's sleek, easy-to-fill, lights up, and dispenses a fine mist of cool water into the air spreading the essential oil all over the room it is in. The light on this gizmo actually changes, so it's a nice vibe along with the misty oil getting put in the air. I love that this doesn't contain any BPA in it as that's yet another chemical I'm attempting to eliminate from my day-to-day life.

As with most of these diffusers, it will automatically turn itself off when the water is empty. COOL! At $30, this diffuser is certainly competitively priced with other brands like it. This one is taller than the other ones I own and takes up less space on the end table. I love it!



This is not my first experience with a scent diffuser, but definitely one of the best. It is easy to use. Just follow the instructions and fill with the proper amount of water/aromatic oil mix and turn on. It is important the you don't overfill unless you want spillage. Turn the diffuser on and let the magic begin. A fine mist will be distributed and not only will the room that this is placed in smell very nice, you will benefit from a comforting feeling of being relaxed. All you have to do is sit back and get comfortable. I close the blinds and drapes and enjoy the general quiet and nice scent and peaceful atmosphere. In action, this diffuser changes color and has a lovely glow. This works so well that it is no problem to nod off and awake feeling both relaxed and refreshed.
The quality of the diffuser is fairly good. It is made of a sturdier plastic that should survive with minimal care. It comes with a power adapter that is about 4.5 feet long. For me, this works just about anywhere in my home which has the usual number of outlets. Despite the picture, this diffuser is compact. I'd guess this is probably a foot tall and at least 6" wide.

By: LKD 216

Absolutely Wonderful!!

This PureGuardian Oil Diffuser is absolutely wonderful! I recently bought this for my daughter because the apartment she moved into had a strange lingering odor. She tried room sprays and candles but let me tell ya, this Oil Diffuser ultimately did the trick! Not only was it super easy to set up, but it actually works so well! The lights are dim and relaxing and now her room smells so fresh and clean - she wouldn't stop raving about it so I ended up ordering one for myself and I couldn't be happier with it!!