The oral irrigator has 3 cleaning modes including soft, strong, and pulse mode. By using it 2-3 times a day, you can prevent tooth decay/gingival atrophy/bleeding gums/dental calculus, etc. [0.6mm Water Fow] The water pick mouthwasher can give massage to your gums and effectively prevent gingival atrophy. [IPX7 Waterproof & 220ml Watertank] The water jet toothpick is IPX7 full body waterproof and designed with a 220ml capacity water tank, which has a good lifespan and is convenient for daily use without a second fill needed