Surface mounted skew ventilation grille with circular output. Used as intake grill inside and outside of the building. Recommended to mounting in the spiro duct and other ventilation duct systems.   The advantage of this ventilation grille is the pre-installed mesh that keeps insects away from the living space. Our unique method involves placing the mesh in the design during production, which means it doesn’t get dirty, torn, or damaged, and it maintains its aesthetic qualities permanently as it matches the grille’s color. The shape of the louvers directs the air “downward,” preventing a cooling effect in the rooms where our ventilation grille is installed.