A product called the OFF! Clip-On repellent device could be an effective tool for preventing bites from mosquitoes that cause Zika, chikungunya, dengue and yellow fever.
The OFF! Clip-On repels mosquitoes by releasing a vapor form of insecticide through a battery-powered fan, forming an insecticide "cloud" around the wearer of the device. In order to test the effectiveness of the device, Christopher Bibbs and Rui-De Xue of the Anastasia Mosquito Control District in Florida studied how the device performed against hungry Aedes aegypti mosquitoes. The study was done outdoors in order to replicate real-world conditions.
They found that the OFF! Clip-On caused high mosquito mortality and knockdown rates up to 0.3 meters from the device, enough to protect a single person wearing the device.