The invention provides plant fatty acid amide hydrolase coding sequences. The seat cover comprises a lower protective member which is disposable upon a seating portion of the seat. The mixing baffle preferably is configured and arranged to combine gas and water in the jetspray nozzle for delivering a concentrated stream of gas with a cluster of micro water droplets entrained in the gas for removing contaminant particles from the mask. Also, the equalizer may determine locations of a post-cursor tap, a cross-term tap, and a portable tap in a feedback path of the equalizer.