The System are designed and developed considering all heat sources in the department and required RH can be maintained constant at desired level with only air washer system. However to control inside temperature during hot & humid weather, chilled water spray is required & during winter heating is recommended. Supply and return air system is designed considering concentration of heat load in the department to maintain uniform condition in the department & to avoid any hot zones. Corrasion free, low resistance, heavy duty rigid PVC piping, polycarbonate spray nozzle with S.S orifice and clamps for quick fixing, specially arranged to insure fine spray spectrum for highest efficiency.