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Deal.ai › Serene House › Aroma Diffusers
Serene House
Serene House Cosmos Ultrasonic Aromatherapy Diffuser

Serene House Cosmos Ultrasonic Aromatherapy Diffuser

Best price now

$39.99at Sabavi HomeObserved at 1:33 PM

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Our take on the Serene House Cosmos Ultrasonic Aromatherapy Diffuser

The Serene House Cosmos is an ultrasonic aromatherapy diffuser with a metal body and a white finish. It runs on ultrasonic vibration rather than heat, so it spreads scent without burning the oils, and it shuts off automatically when the water runs low. At $39.99 at Sabavi Home as of November 7, 2026, it is the only new price listed, so there is no recent range to compare it against.

Best forSmall bedrooms and living roomsBuyers who want a metal, not plastic, bodyPeople who want set-and-forget safety with auto shut-offGift buyers looking for a simple diffuser
Pros
  • Ultrasonic mist works with standard essential oils, no heat involved
  • Metal body looks more substantial than typical plastic diffusers
  • Automatic shut-off when water runs out reduces the risk of running dry
  • Simple one-button operation with no app or setup needed
  • Compact footprint suits a nightstand or desk
Cons
  • Only one store lists it new, so price competition is thin
  • No coverage or tank-size figures given, so room size is a guess
  • Metal body may show water spots and fingerprints
  • Ultrasonic mist can leave residue on nearby surfaces if oils are heavy

Serene House Cosmos Ultrasonic Aromatherapy Diffuser prices at every store

  • Sabavi HomeNew

    In stock

    $39.99+ $12.99 shippingObserved at 1:33 PM
    Visit Sabavi Home

Store links may earn us a commission. Price via Klarna.

Serene House Cosmos Ultrasonic Aromatherapy Diffuser price history

Lowest price we've seen: $39.99 on Nov 7 at Sabavi Home. Tracked across 1 store since Nov 7.

Specifications

Color
WhiteSource
Material
MetalSource

Questions and answers

Is the Serene House Cosmos worth $39.99?
At $39.99 at Sabavi Home as of November 7, 2026, it is a mid-priced ultrasonic diffuser with a metal body and auto shut-off. That is fair for the build, but only one store lists it, so check back for other prices before buying.
How does it compare with plastic ultrasonic diffusers?
The main difference is the metal housing, which should feel sturdier and look less like a gadget than plastic models. Functionally it works the same way: ultrasonic mist plus automatic shut-off.
What oils can I use in it?
It is an ultrasonic diffuser, so standard essential oils and oil blends work. Add water to the fill line and a few drops of oil; avoid thick or heavy oils that can clog the ultrasonic plate.
Does it shut off by itself?
Yes. It has automatic shut-off, which turns the unit off when the water level gets too low. That means you can leave it running in a bedroom without watching it.
What comes in the box?
The listing gives only the diffuser itself, in white with a metal body, plus its auto shut-off feature. A power adapter and instructions are typical for this type of diffuser, but confirm the contents with the store before ordering.
When is the best time to buy it?
With a single new listing at $39.99 as of November 7, 2026, there is no price history to time a drop against. Watch for holiday sales at Sabavi Home or for a second store to list it.
Where is the Serene House Cosmos Ultrasonic Aromatherapy Diffuser cheapest?
At Sabavi Home, for $39.99, as of our latest check.