The LinkedAir swirl diffuser are designed for supply air application. It can also be used in the high ceiling application ranging from 2.6 meters to 4 meters. The air blown into the room with a spiral “swirl” pattern which allows the air mix in very short distances. Due to its capacity and speciality of supply air pattern, the conditioned air can be set 1 to 3 degree lower than the classical systems (4 way) without causing the annoy cold draft. Therefore, the spacing can be set to required temperature more effectively.