System for generating uniform diffusion of air

A system for generating uniform air diffusion, the system comprising:

• a diffuser tube having a first elongated profile and comprising a first surface extending along a longitudinal length of the diffuser tube and defining a first enclosed space, the diffuser tube configured to receive conditioned air within the first enclosed space via at least one inlet, the first surface comprising:
• a first plurality of openings, each of the first plurality of openings configured to allow movement of air across the first surface;
• wherein the longitudinal length of the diffuser tube is changeable;
• and
• an external casing having a second elongated profile and comprising a second surface extending along a longitudinal length of the external casing and defining a second enclosed space, the external casing configured to encase the diffuser tube within the second enclosed space, the second surface comprising:
• a second plurality of openings, each of the second plurality of openings configured to allow movement of air across the second surface;
• wherein the external casing is rotatable relative to the diffuser tube, to cause a uniform circulation of the air in the vicinity of external casing.