Abstract: The air screen flying insect repellant system includes a series of perimeter blowers designed and arranged to circulate a vertical air curtain from one blower to the next to create a physical barrier of continuous moving air around the “insect free” zone. The velocity of the moving air curtain is maintained between the blowers by the action of the tangential fans, which draw air into the blower from the adjacent blower, as well as propelling air outward toward the next adjacent blower. The blowers maintain the velocity of the air curtain at sufficient velocities (generally over 3.6 miles per hour) to prevent mosquitoes from passing between the blowers. The blowers also incorporate a mechanism for dispersing insect repellent or fragrance into the air curtain. The dispersion mechanism allows insect repellants to be actively or passively introduced into the air curtain to further deter the encroachment of mosquitoes and other flying insects.