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Ultrasonic Aroma Diffuser


Model: ARMH-590

Availability: In stock

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Brighten your home with the HoMedics® Ultrasonic Aroma Diffuser. Choose between a neutral grey color to fit any decor or if your looking to add a pop of color the red will surely spice up any decor.
Features like a fine mist to deliver and disperse your favorite scents as well as glowing color changing lights help create a peaceful environment. Run for up to 6 hours continuously or up to 12 hours intermittently on a single filling of the 130 mL reservoir.
Each diffuser comes with a 2-pack oil sampler, power cord and instructional information.

Advanced Features
  • Ultrasonic Aroma Diffuser delivers a fine mist of natural aroma to enhance your mood (2-pack oil sampler included)
  • Soothing Humidity Alleviates dry air
  • Color Changing Light Gentle glow creates a peaceful environment
  • Runtime Up to 6 hours of continuous runtime Up to 12 hours intermittent runtime
  • Reservoir Size 130 mL
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Q & A

I just got one for my birthday, but it’s not misting/can’t smell the aroma. Am I doing something wrong?

Asked by: kcamu
We recommend cleaning the reservoir and ultrasonic membrane. Before cleaning the unit, turn the power off and make sure the adapter is unplugged from the diffuser and outlet. Remove the outer cover from the base. Next, remove the inner cover. Carefully pour any remaining water and essential oil out of the reservoir, from the drain side, opposite the air outlet. Be sure not to empty the reservoir near the air outlet in order to avoid malfunction. Pour a 50/50 mixture of vinegar and water into the reservoir and let it soak for 5 minutes. Brush reservoir walls, base, and ultrasonic membrane clean with a soft-bristle brush and rinse.
Answered by: Consumer Relations
Date published: 2019-04-25

Where is the user guide for this model

Asked by: SJE1
The Instruction Book can be downloaded at at the bottom of the home page under the "SUPPORT" heading.
Answered by: Consumer Relations
Date published: 2019-03-08

What are the dimensions of this diffuser? What material is it made out of?

Asked by: PPPP
The diffuser is approximately 6 x 6 x 11 inches. The outer cover is ceramic. The inner reservoir is made of plastic and the base is made of wood.
Answered by: Consumer Relations
Date published: 2019-02-20

Can I get a outer cover. I broke original 

Asked by: Cartx
We are sorry to hear this. Please contact Consumer Relations at 1-800-466-3342 Monday through Friday 8:30 a.m. to 7:00 p.m. EST for assistance.
Answered by: Consumer Relations
Date published: 2019-02-11

How come it only stays red and dissent change color

Asked by: Shanena
Press the light button once to turn on the color changing light. Press again to stop on a preferred color. Press a third time to turn the light off.
Answered by: Consumer Relations
Date published: 2019-01-25
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Online Support Information