A sanitizing system uses ultraviolet light within a housing having an interior chamber. When items such as shopping carts or wheel chairs are moved into and out of the interior chamber, a cover is moved to reduce the light shining out of the housing. The cover is coordinated with the door of the housing to limit light shining on the users of the system. In another configuration, a switch is used to turn off the light source to reduce the light shining out of the housing when items such as shopping carts or wheel chairs are moved into and out of the interior chamber. In both of the systems described above, the sanitizing system may use a single sanitizing source such as a UV light source or a combination of sanitizing systems such as a UV light source in combination with a source of disinfecting plasma.