by adjacent blocks louvered panels are attached about the exterior and interior openings of the vent the exterior louvered panel accommodates either a flat finish or a stucco finish the interior louvered panel can accommodate either a flat finish of the wall or a wall finished with sheet rock application_number US 38088206 A description referring to fig1 there is illustrated in exploded view a vent 10 for installation in a conventional block wall 12 the length and height of vent 10 is commensurate with the equivalent standard dimensions of a block 14 accordingly vent 10 is laid in the block wall in the same manner as a conventional block 14 because vent 10 does not have the compressive strength of a conventional block 14 a lintel 16 extends across the top of the vent and receives support from the blocks on either side of the vent for example end 18 of lintel 16 rests upon block 20 and end 22 of the lintel would rest upon a block adjacent the other end of the vent as illustrated a lintel block 24 is used to overlie the lintel in order to accommodate the height of the lintel by the groove or slot 26 extending along essentially the center of block 24 it is to be understood that the lintel may be attached to the vent by bolts screws rivets welds etc as particularly shown in fig1 3 and 4 vertical and horizontal flanges such as the right angle flanges illustrated extend from vent 10 for engagement with the mortar separating.