

The Double-DutyTM Heat Killer (DDHK) is the most powerful and adaptable portable air mover on the market today, with airflows up to 17,000 cfm (28,890 m3/hr). The innovative adjustable guide vane design enables precise control of airflow – from a moderate breeze for personnel cooling to a concentrated jet blast for cooling products and processes.
| Hazardous Area Rating | Class 1 Division 1 Group D and Class 2 Division 1 Group F & G |
The Curtiss-Wright COPPUS Double-Duty Heat Killer (DDHK) Ventilators is the most powerful and adaptable portable air mover on the market today, with airflows up to 17,000 cfm (28,890 m3/hr). Airflow control is enabled by the innovative, adjustable guide vane design, which ranges from a soft breeze for personnel cooling to a concentrated jet blast for product and process cooling.



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