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Mainstays

Mainstays Aromatherapy Essential Oil Diffuser, Cool Mist, Green, 300mL

Key item features

  • Cool Mist: This Mainstays aromatherapy diffuser utilizes cool mist ultrasonic technology for essential oil diffusion.
  • Generous Capacity: Features a 300mL water reservoir, allowing for extended operation.
  • Safety Auto-Shutoff: Automatically powers off when the water level becomes low, ensuring safe use.
  • Adjustable Mist: Offers four distinct mist stages to customize the diffusion intensity.
  • Variable Lighting: Includes five light settings: 10%, 40%, 70%, 100% brightness, and an off option.
  • Included Adapter: Comes with an AC wall adapter for convenient power supply.
  • Translucent Green: The diffuser is presented in a translucent green color.
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Current price is $24.76
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Customer ratings & reviews

4.1 out of 5 stars
stars608 ratings294 reviews
How item rating is calculated
  1. 5 stars68% (413)
  2. 4 stars7% (44)
  3. 3 stars4% (26)
  4. 2 stars3% (20)
  5. 1 star17% (105)

Reviews summary

Pros

  • : Simple setup and operation with minimal effort.
  • : Offers multiple settings for customized illumination.
  • : Fills room with scent quickly.
  • : Features a decorative look with various color options.

Neutral

  • : Can be clear and easy to follow, but may be lost or unclear for some users.
  • : Can be strong and visible, but may be inconsistent or non-existent.
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Showing 1-3 of 294 reviews

Jun 24, 2025
Retgra
5 out of 5 stars review

Verified Purchase

i like how fast it works and that you can set it to turn off in two hours. If you forget , it automatically turns off in two hours. The scents i chose may not be as strong as I'd like but i can still smell an aroma after its off for hours. Also, i chose this over all others because it can be plugged in. i don't want to mess with a battery or a remote. i have too many remotes in my house. It's easy to move from room, if needed. i really like it so far but it is ugly!

Helpful?1JS81J1JSY4C1314205348
reply from CHUG, Inc. / GEMS

Hello, thanks for your review, Retgra! We're glad to hear the Mainstays Ultrasonic 300mL Oil Diffuser is working well for you and fits conveniently into your routine. Please feel free to reach out to us at customersupport@gemsfindyours.com for future support.

Sep 2, 2024
Dan
Top Reviewer
5 out of 5 stars review

Verified Purchase

Nice looking diffuser that ALMOST does it well.

Easy to use, easy to clean, easy to move. These are well made diffusers and work really well in a smaller space like a bedroom, bathroom,kitchen or office. More than that and they need a second unit to keep up. A typical living room or family room are too much for the amount these put out. I plan to buy one or two more for other spaces in the house.

Helpful?1JS81J1JSY4C1314205348
reply from CHUG, Inc. / GEMS

We're glad to hear you're enjoying the Mainstays Cool Mist Ultrasonic Aroma Oil Diffuser. Your feedback is important to us, and we're always working to make our products even better.

May 18, 2026
Sephardi
Top Reviewer
5 out of 5 stars review

Verified Purchase

A hard worker!

This is the grandmother to the other little diffuser from Walmart. Holds a huge amount and it lasts way throughout the day. Makes almost no noise. Jesus loves you and your soul is priceless!

Helpful?1JS81J1JSY4C1314205348
reply from CHUG, Inc. / GEMS

Hey Sephardi, love hearing how much use you’re getting out of this diffuser throughout the day and that it’s running quietly in the background. It’s great when a product can hold a good amount and still keep things simple. Really appreciate you sharing your experience and the thoughtful note at the end. Should you have any support needs or questions you can reach us at customersupport@gemsfindyours.com