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The OasiSmile C2 is a cordless rechargeable oral irrigator with a 350 mL reservoir, four pressure modes and a 1500 mAh battery charged over USB-C. Its large tank gives about 160 seconds of continuous use per fill, so most people finish a session without refilling, and the IPX7 body can go in the shower. It suits braces wearers, implant and crown owners and anyone with sensitive gums who wants adjustable pressure. Against rivals like Waterpik cordless models it trades brand pedigree and a wider pressure range for a bigger tank, five nozzles and a two-minute shutoff timer.
In stockSold by OasiSmile
Lowest price we've seen: $21.99 on Nov 9 at Walmart; highest $24.99 on Nov 3. Tracked across 1 store since Nov 3.
Rated 4.7 out of 5 from 25 ratings, buyers mostly praise the large tank, the range of pressure settings and how clean their teeth feel. Complaints center on the size and on battery drain at high pressure.
The OasiSmile Cordless Rechargeable Water Flosser is a portable oral irrigator with a 350 mL water tank. It has four modes: Strong, Normal, Soft and DIY. The modes suit sensitive gums, braces and implants. A 2-minute auto-shutoff timer is built in.
One fill of the tank gives 160 seconds of continuous cleaning. The flosser charges through a Type-C port in about 3 hours, and a full charge lasts up to 30 days of use. It is IPX7 waterproof, so it can be used in the shower.
It comes with five interchangeable nozzles: three standard, one orthodontic and one tongue-cleaning. The compact, ergonomic body is meant for use at home, while traveling and at the office.

