not significantly affect or alter the exterior shape of the device in a way that detriments the vortex suppressing function for example a set of cleats and fasteners can be used for securing the apparatus to the wall as illustrated in the above figures an embodiment of this invention is a passive flow control device for wall edges once configured and installed properly it stays functioning in such a way that it mitigates vortex formation around a wall edge and reduces wind loads on the wall whenever the wind blows towards a building bearing such wall edge devices and requires no active operational intervention it is apparent that wall edge vortex suppressors of this invention provide advantageous devices for mitigating wall edge vortex and wall suction and are still among the simplest most effective and reliable inexpensive to manufacture and convenient to install with little if any maintenance required the present invention provides a simple and unique method for improving building wind resistance not only suitable for new constructions but also for retrofit on existing buildings although the description above contains many specifications these should not be construed as limiting the scope of the invention but as merely providing illustrations of some of the presently preferred embodiments of this invention various changes modifications variations can be made therein without departing from the spirit of the invention wall edge vortex suppressors can be made of any reasonably durable.