SEJOY C91 portable oral irrigator — tank capacity to be verified

Specifications declared by the supplier

• Model indicated: SEJOY C91
• USB rechargeable oral irrigator with a stated battery capacity of 1800 mAh
• The supplier states five modes, pressure of 10–90 PSI and a frequency of 1,400–1,800 pulses per minute
• Removable tank; the capacity data is inconsistent: the title indicates 230 ml, while the technical description states 270 ml and the specifications 280 ml
• The supplier states IPX7 protection and a charging time of approximately four hours

To be confirmed: actual tank capacity, number and type of nozzles included, instructions and safety documentation. The product sheet does not include a verifiable description of whitening strips despite the original title. The performance and health effects reported by the supplier have not been independently verified.