Air Handling System
Available with us, is a quality proven range of air circulation systems that is used for rapidly ventilating an enclosed area with fresh external air. Offered in standard and dual mode operations, these air circulation systems are offered to our clients in standard and customized specifications.  
The mode of operation of the dual circulation systems is mentioned below :
 Multiple barriers operate to create two airflow pathways 
 Two return air duct apertures are opened to expose the return air duct to an external air supply area via a fresh air duct 
Fresh air duct includes an opening to the external air supply area 
Two extensions are coupled to the return air duct apertures 
Simultaneous operation of barriers to block the return air duct between the two return air duct apertures 
This helps in the formation of two distinct return air duct segments
Central air unit and exit fan cooperate with the barriers
This establishes two airflow pathways through the return air duct segments
First one is for extending the airflow pathway from the external air supply area to the fresh air duct through the first return air duct segment directly into the enclosed area before removal by the exit fan
The second airflow pathway extends from the external air supply area to the fresh air duct through the second return air duct segment through the central air unit through a supply duct into the enclosed area before removal by the exit fan