An air nozzle is designed to be more efficient and quieter at the higher discharge velocities than a standard double deflection grille. AirConcepts' newest air nozle, the ANC with Adjustable Diffusing Vanes (ANC-ADV), was designed for use in applications where there may be a need to vary air projection. Our standard ANC model becomes the ANC-ADV model with the addition of "adjustable diffusing vanes." The ANC-ADV model can be used for two different types of situations: (1) to provide the same air projection obtained ith a standard ANC, or (2) to provide for a shorter air projection and the resultant lower terminal velocity.