Power consumption may be reduced in a media device including a first processor coupled to the non-volatile memory, either directly or indirectly, allowing the first processor to generate a pointer structure. According to the invention, the activity of the solid biocide can be maintained by additionally treating the liquid with the composite material, which absorbs from which the liquid andor contaminants simultaneously releases active ingredients for sterilizing andor reducing the contaminants in the liquid. Customer data encrypted with the at least one encryption key can be received such that the customer data is uniquely associated with both the client system and with the customer. A method of adjusting a pedestal includes leveling the pedestal, translating the pedestal, calibrating the pedestal height to a preheat ring level, and checking the level and location of the pedestal while rotating the pedestal. The metallic material gas is not in contact with the catalytic material, and the catalytic material is not degraded.