Limited prior research has demonstrated that granular beds of activated carbon (Weschler et
al., 1992) or filters containing activated carbon (Gundel et al., 2002; Beko et al., 2008) can be
highly effective in removing ozone from an airstream for an extended period. In addition,
research has shown that the addition of activated carbon in at least one type of bag filter that
also removes particles can improve perceptions of air quality (Beko et al., 2008). Most major
particle filter manufacturers now market filters that contain some activated carbon while also