The single hole of the fiber fabric air duct is similar to the spraying distance of the metal nozzle, and it can spray 20 to 30 meters away under a certain pressure. However, the opening of fiber fabric air duct is usually designed and manufactured as a linear hole, so it will be sprayed further by the superposition effect of holes. If you add buildings (stairs) or air distribution (return air), it can reach 45-50 meters away.