Hello. I spent a long time on the internet choosing where to buy a quality device for daily oral hygiene, and ended up buying the Revyline Portable Oral Irrigator https://revyline.ae/. It has five pressure levels from 130 to 760 kPa, five nozzles with a basic configuration, a large 240ml tank that can be easily removed and put back in. I like its stylish design too. I recommend it.