The characteristics of adiabatic compound insulation air duct The adiabatic compound insulating air duct is composed of an outer insulating layer, a rubber-plastic insulating layer and an inner air duct layer. Using a polymer fusion technology, the outer insulation layer, the rubber-plastic insulation layer and the inner air duct layer of the perfect integration of rubber-plastic composite materials. Excellent moisture resistance, can effectively prevent water vapor infiltration, to maintain the initial thermal conductivity, better insulation performance, effectively reduce the heat and cold loss in the air supply process. Rubber and plastic insulation layer thickness: 10mm/15mm/20mm/25mm. 1. Surface type air out, large air volume, no blowing sense. Soss air pipe adopts the unique surface air outlet mode of the whole pipe wall fiber permeating air and microporous jet, which has large air outlet area, large air volume, low wind speed, no wind feeling and excel…