Patent ID: 8444918

Claim:
A water purifier comprising: an enclosure; a source water inlet through which source water is fed in from outside the enclosure; a purification section; an ultraviolet radiation sterilization section which has an ultraviolet light source; a purified water outlet through which purified water purified by the purification section and sterilized by the ultraviolet radiation sterilization section is fed out to outside the enclosure; a condition detection section; and a control section which controls generation of ultraviolet radiation from the ultraviolet light source according to detection by the condition detection section; wherein the condition detection section has an abnormality detection section which detects a condition in which ultraviolet radiation can leak from inside to outside the enclosure, and when the abnormality detection section detects the condition in which ultraviolet radiation can leak, the control section inhibits the ultraviolet light source from generating ultraviolet radiation.