For the return of heat and air conditioning’s the return air diffusers are great for use in T- Bar ceiling. Return air diffusers have a puntured face, rigid metal back with a assigned collar for attaching the return duct and are painted a bright gloss white.
Product tips – Return air diffusers should be located a ample distance from the supply outlet so that short-circuiting of supply air does not occur. It may also be advisable to find the returns in the still zoned to remove unwanted warm or cool air. For cooling , a high sidewall or ceiling return will remove warm air from the space , for heating a low sidewall return will remove warm stagnant air.