the precipitate 36 however the remediation apparatus 30 is not so limited and may include filtration or any other remediation function the gaseous fluid moves through the remediation apparatus 30 and toward the top wall 16 as illustrated by arrow c the gates 26 disposed between the remediation apparatus 30 and the secondary duct 32 may open and allow the gaseous fluid to pass into the secondary duct 32 as illustrated by arrow d the gates 26 disposed between the secondary duct 32 and the exhaust duct 34 open and allow the gaseous fluid to pass into the exhaust duct 34 as illustrated by arrow e the gaseous fluid flows through the exhaust duct 34 illustrated by arrow f and toward an outlet manifold 38 best shown in fig3 the outlet manifold 38 enables the industrial ducts 14 to be coupled to additional operations to further process the gaseous fluid as needed additionally the gaseous fluid flow directly between the primary duct 28 and the exhaust duct 34 the gates 26 disposed between the primary duct 28 and the exhaust duct 34 move to the unsealed position and the gaseous fluid flow from the primary duct 28 to the exhaust duct 34 and toward the outlet manifold 38 as illustrated by arrow g the gates 26 disposed between the remediation apparatus 30 and the secondary duct 32 between the secondary duct 32 and the exhaust duct 34 and between the primary duct 28 and the exhaust duct 34 are further defined as poppets 40 each of the poppets 40 includes a rod 42 and a plate 44 coupled to the rod.