Apparatuses are provided which include a germicidal source, power circuitry coupled to the germicidal source, a shield, a sensor for detecting whether the germicidal source and the shield are in and/or out of proximity with each other, and an additional sensor to detect movement and/or occupancy within an ambient of the apparatus. The shield and/or germicidal source are moveable within the apparatus and the apparatus is configured such that the shield and/or the germicidal source may be brought in and out of proximity with the other and upon doing so germicide projected from the germicidal source is either substantially contained in the apparatus or is projected exterior to the apparatus for different disinfection modes of the apparatus. The apparatuses include a processor and processor-executable program instructions for controlling the additional sensor and power circuitry.
