A small thermal exhaust port allowed access to the Death Star's sensitive reactor core.

Cold plasma-catalytic reactor for exhaust purification was developed, where the reactor was consisted by two parts including dielectric barrier discharge system and metal honeycomb substrate catalyst.

Regulatory agencies in both the us and Europe are tightening controls on fugitive emissions, such as equipment leaks, as opposed to point-source emissions from reactor vents or boiler exhaust stacks.