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The TAO Clean UMMA Diamond is a sonic electric toothbrush with a built-in UV-C drying case that sanitizes and dries the brush head between uses. It runs at 40,000 vibrations per minute with two cleaning modes and a two-minute timer with 30-second quadrant pacing. Battery life is about 2 to 3 weeks per charge. At $65 at eBay as of November 6, 2026, it sits well below what this brush typically sells for new, making it one of the cheaper ways into a self-drying sonic brush.
In stock
Availability unknownSold by ka-869311 (100% positive, 44 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.
Availability unknownSold by dbtreasures25 (99.2% positive, 1,200 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.
Availability unknown
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Also available at
Lowest price we've seen: $38.28 on Nov 6 at The Right Chiro. Tracked across 2 stores since Nov 6.
Owners of the UMMA line generally like the clean feel and the drying case, which keeps heads from sitting wet. Complaints center on the plastic build and the limited mode selection.
