Meeting the indoor air comfort needs of both spectators and participators in a large open space requires a durable and economical high air volume HVAC solution. 

Requirements within a theatre result in large cooling loads with a high latent head load and large air quantities.

In order to correspond to the noise requirements, a designer should keep in mind not to exceed air velocities in ducts and also the location of supply and return air outlets. Therefore it is recommended that supply air be introduced from the ceiling area through diffusers and return air be collected from below the seats to maintain the desired air flow pattern.

The location of the AHU room is also important as they should be installed a substantial distance from the auditorium, preferably with ducted supply and return air.