An indoor ozone-producing air purifier was evaluated for its repellency effects on
Aedes aegypti, Aedes albopictus, Culex quinquefasciatus, Musca domestica and Periplaneta
americana adults using a modified tunnel cage. The first set of testing consisted of both bait
and the air purifier, whereas only bait was offered in the second testing set. The highest
percent repellency was recorded among Cx. quinquefasciatus (83.23%) while Ae. aegypti
(68.56%) was the least repelled by the air purifier tested. No mortality was observed in all
testings. These results illustrated the potential use of the ozone-producing air purifier as a
personal protection insect repellent device in premises. Nevertheless, in order to prevent
dengue infection which is transmitted by both Ae. aegypti and Ae. albopictus, ozone-producing
air purifier should be utilized concurrently with other vector control methods.