VEVOR Air Curtain, 1.2m Electric Wind Curtain with Limit Switch, Max. 2204 CFM Air Flow, 3 Speeds Control Commercial Indoor Air Curtain, Ideal for Shops, BuildingsProduct Features Feature 1 ISOLATE INTERIOR FROM EXTERIOR The commercial air curtain, made of galvanized material, effectively keeps the conditioned air inside and blocks 90% of hot cold air, dust, flying insects, etc. 47. 2"x7. 5"x8. 7" in dimensions. 3 SPEEDS ADJUSTABLE Three speeds are available. High speed 2204 CFM (power: 325W); Medium speed: 1633 CFM (power: 270W); Low speed: 1443 CFM (power: 268W). Feature 3 LARGE AIRFLOW & LOW NOISE One