블루구피
요새는 세기조절도 가능해서 약하게도 충분히 가능해요
When I used a Waterpik in the past, the water pressure wasn't adjustable well, so I ended up bleeding. Do modern Waterpiks have a low setting? I feel like flossing isn't quite enough, so I want to use a Waterpik, but my gums are sensitive, so I'm scared it might bleed.