* Air Curtain – versatile range available : centrifugal range, cross flow range (standard / heating), mini range (for elevator specialist), industrial range * Cross Flow (Heating)– RM19-series is designed with maximum air velocity of 7.8m/s and installed with heating elements for winter application. * As an invisible door for shut-out function, zoning function and circulation function. * Wide size range : 3ft/900mm, 3.3ft/1000mm, 4ft/1200mm, 5/ft/1500mm for selection * Full metal housing. * Adjustable air deflection vents * High performance motors, built-in thermal cutout protection * High air velocity and quiet operation * Remote control & light touch switch or push button switch * Various louver designs for selection.