Metal casing with durable powder spray coating, unique arc design and slim body, high efficiency and low noise, convenient operation, easily adjust air pattern, multiple width available : 600, 900, 1000, 1200, 1500, 1800 and 2000mm. Cooper motor with ABS impeller,ball bearing for durable running. Unique air duct design,stable air pressure.big air volume,Ideal for most commercial entrance up to 2.8 meters. small and compact air curtain of elegant and friendly design with rounded shape.wall mounted regulation system with remote control.casing construction made of cold rolled sheet.