Initial studies of oxidation processes on filter surfaces and their impact on perceived air quality

In this paper, the authors have studied the oxidation processes on air filter surfaces initiated by ozone. Ozone concentrations were monitored upstream and downstream of used and new filter samples using a small-scale test rig at two different airflows.Test results have shown that the removal of ozone by a loaded filter decreases over time then gets steady. Though necessary, the filtration of ozone creates oxidation processes that are responsible for the generation of products that affect the perceived air quality mainly after periods when the ventilation system is not in operation.