The DIF.K and DIF.S terminal hoods can be installed directly into sterile and cleanroom environments with absolute filters so the air is filtered at the desired purity level which is then diffused immediately into the room. They are made of a frame to hold a DELTA mini-pleat absolute filter, a steel plenum and a diffuser.
The diffuser can be unidirectional flow, high induction swirl flow or 4-way turbulent flow with Coanda effect.
Filter and diffuser can be disassembled directly from inside the room.