Specifications: Direct-Ventilating Air Curtain is a newly model. By special twin-nozzle new air flow designed, it creates more effective air barrier. Effectively prevents cold draughts, dust, harmful insects and fumes. With infrared remote-control, it let your working conditions turns more freely and simply. Provide four different lengths(600mm,900mm,1200mm,1500mm) make it possible to cover openings of different widths. *CE APPROVAL.