One of the processes in a current product design catalyzes the conversion of atmospheric oxygen into ozone: $$ 3\text{O}_2+\text{energy}\rightarrow 2\text{O}_3 $$ Ozone is highly reactive and, over time, will degrade the components in the sealed enclosure. One technique which I have read about for removing the ozone is to actively cycle the air in the enclosure through a catalyst such as silver oxide ($\text{Ag}_2\text{O}$) or manganese oxide ($\text{MnO}$).
Given that the enclosed volume is 1-2 liters, is it necessary to actively cycle the air, or can the catalyst simply be placed in the enclosure? Are there any other techniques for ozone removal which I should consider?