The COPPUS 3HP is a portable Venturi fan manufactured by Curtiss-Wright EMS. It forms part of their COPPUS® Portable Ventilators product range and is also known as JECTAIR®. It can be used with compressed air or steam and has an air flow range of 1,370 to 8,900 cfm (2,328 to 15,121 m³/h) with induction ratios up to 40:1
