Yes, it is safe of course.
Its seat is antibacterial to avoid cross infection. Its nozzle will carry out self-cleaning both before and after the product is used. In addition, the WASHLET product is provided with the manual cleaning function, which facilitates the manual cleaning.
The nozzle is designed with a unique angle, which ensures that the dirty water after cleaning will not be splashed to the nozzle. The special water filter screen secures the cleanness of the flush water. If the WASHLET product has not been used for a long time, it is allowable to drain away the water from the flush tank by pressing the button.
From the design perspective, the thermal fuse, the overheating preventer and the empty burning device are installed in WASHLET to ensure safe use.