KE Fibertec markets two products for fabric-based displacement ventilation: the ImpulseSystem and the Impulse D and ½D System. The Impulse System is produced using round ducts (Ø), while the Impulse D and ½D Systems are produced using half-round (D), or quarter round (½D) ducts. The air distribution principle for horizontal low impulse systems is based on passive thermal displacement where the air is supplied at a lower temperature in relation to the air in the room.
