35 Ill. Adm. Code 211.890
Capture
Section 211
Section 211.890 Capture
"Capture" means the
containment or recovery of emissions from an emission unit for direction into a
duct which may be exhausted through a stack or vent to a control device. The
overall abatement of emissions from an emission unit with an add-on control device
is a function both of the capture efficiency and of the control device
efficiency.