EFC120X-20''electric smoke ejectors blowers
Feature:

Smoke ejection-clears basements,confined areas with ducting;
Stackable for more PPV FORCE and easy storage;
Optional duct adapter for use with 40cm duct in confined space applications;
Available with in various voltage and frequency configuration;
Optional door bar and hanger kit for suspending in doorways windows.
 

EFC120X-20''  blowers are widely used for ventilation at factory building,warehouses,construction sites,tunnel,mining area,also are used for firefighting