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Repellency effects of an ozone-producing air purifier against medically important insect vectors.

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.