An air filtration apparatus is disclosed. In another embodiment, a process for removing reactive metal, salts from the surface of metallic equipment used in the distillation of sevoflurane and rendering a non-inert metallic surface of the metallic equipment inert. The present invention provides CA polypeptides associated with cancer that are present on the cell surface and present novel therapeutic targets against cancer. Content is assembled by remotely callable daemon applications that can work in parallel to increase throughput and distribution from different locations. In one embodiment, the shock event logger records information about the shock event sequentially. The flash memory buffer includes a DRAM-to-flash memory converter operable to convert the DRAM memory requests to flash memory requests, which are then applied to the flash memory device.