The cabinet base is fixed to the wall and is latched at its bottom to the rear of a front panel of section as a ships hull. The mechanics and electrics box are mounted on the base and a drain panel fixed the top panel by a T-pawl into a slit in the front panel. The top panel (220) includes air inlet and filter held by a movable grille parallel to ceiling. The front panel has air outlet diffuser (127) and detachable side panels retained to base by latching hook and channel.
