Mosquito fact #6
Mosquitoes are not affected by ultrasonic devices. At least ten studies in the past 15 years convincingly demonstrated that ultrasound in the range of 20-70 kHz has no repelling effect on female mosquitoes. Huge amounts of money are spent on research and development of ultrasonic devices, they are an effective marketing tool, but nonetheless none of them works as they are advertised to work.
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