PROBLEM TO BE SOLVED: To provide a boot keeper capable of deodorizing and sterilizing the whole boot 100 by incorporating a down-sized ozone generator with low power consumption.SOLUTION: The boot keeper 1-1 includes a keeper body 2, the ozone generator 4, and a keeper opening/closing mechanism 3. The keeper body 2 includes a shin-side member 21 and a calf-side member 22, and is attached to a spring member 32 of the keeper opening/closing mechanism 3. The shin-side member 21 and calf-side member 22 are opened/closed by rotating a shaft 31, so that the keeper body 2 can be inserted into a barrel part 101 of the boot 100 and fixed therein. A drive circuit 42 of the ozone generator 4 is housed within a handle 35, and an ozone generating element 41 is detachably attached to the shaft 31. With this structure, ozone is generated in the ozone generating element 41 by driving the drive circuit 42, so that the whole boot 100 can be deodorized and sterilized.
