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The HoMedics SereneScent is a waterless fragrance diffuser that runs on a rechargeable battery for up to 6 hours per charge. Instead of water and heat, it disperses HoMedics fragrance oils directly, so there is nothing to fill or clean out and no flame. It suits people who want a portable scent for a desk, bedside table or small room and don't want to manage a water tank. Against water-based ultrasonic diffusers it trades a bigger scent throw and longer runtime for a narrower choice of oils and no humidity benefit. Ratings are middling at 3.6 out of 5, with owners split on scent strength and battery life.
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Lowest price we've seen: $80.79 on Nov 13 at Staples. Tracked across 6 stores since Nov 13.
Ratings sit at 3.6 out of 5 from 98 buyers, so reception is lukewarm. Owners like the waterless design and portability but often find the scent weaker and the battery shorter than expected.
The Homedics SereneScent is a waterless home fragrance diffuser that comes as a set with oils. It needs no water and uses no flame.
It runs on a battery for up to 6 hours, so it can be used for aromatherapy in different spaces.

