Ventilation is provided by 53 fans, operated by 104 motors that release 6,152,000 cubic feet of fresh air into the tunnel. It takes approximately 90 minutes to completely change the air in the tunnel.
Ventilation is provided by 53 fans, operated by 104 motors that release 6,152,000 cubic feet of fresh air into the tunnel. It takes approximately 90 minutes to completely change the air in the tunnel.
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