Hello All,

I have a question about printer room exhuast fan. The mechanical designer wants to recirculate the exhuast air from the printer room due to some costing issue and etc, I know it is not permitted to recirculate the air from the printer room, but what if they put filter on the exhuast air stream of the printer room, can the air then been cleaned to be recirculated? does anyone has experience on recirculating the exhaust room using any strategy?