Mapro range of fixed blade Swirl diffusers offer efficient alternative to conventional square or round ceiling diffusers as they produces aerodynamically controlled air pattern. MSRD series of high induction diffuser promotes the rotation of room air, which increases mixing effectiveness. The unique style of this diffuser will provide an aesthetically pleasing appearance to any architectural application. The diffuser face of the type MSRD consist of fixed, radially arranged air control blades. Due to the rotary swirling motion of the air discharge, induction of room air occurs very quickly, resulting in rapid decay of supply air velocity and temperature diffe ential.