Patent ID: 7771672

Claim:
A plasma reactor arranged to inactivate biological particulates and collect biological and non-biological particulates that are carried in a fluid stream passing through the reactor, the plasma reactor comprising: a plasma chamber having a plasma generator therein, wherein the plasma chamber is arranged to receive the fluid stream and subject substantially the entire fluid stream to a cold plasma having a composite electron density of at least 10 13 electrons/m 3 to thereby ionize the fluid stream sufficiently to create a high concentration of reactive species within the fluid stream; at least one filter located downstream of the plasma chamber for filtering particles from the ionized fluid stream; an electrode located downstream of the filter and configured to receive the ionized fluid stream there through, wherein the electrode carries a catalyst that is arranged to significantly reduce the concentration of reactive species that are contained in the fluid stream before the fluid stream emerges from the plasma reactor, whereby during use a potential may be applied to the electrode to cause charged species to be attracted towards the catalyst; and a power supply arranged to apply the potential to the electrode.