Label sheets are formed from a continuous web of laminated stock material comprising a face stock layer and a liner layer secured together by an adhesive layer. An error detection system can include a plurality of networked output devices and a processor coupled via a network to the plurality of output devices. The flow conditioning member is shaped to block the passage of water from the air passage to the air conduit while improving the efficiency of air flow from the air passage, into a space between the inner and outer walls, and into the air conduit. The BIOS may also be used to validate the Boot Block, CMOS and NVRAM. The latch on the fin releasably engages the shield when the shield is in the proximal position.