Mosquito repelling television

The Indian division of South Korea’s LG Electronics has developed a TV it claims can repel mosquitoes, which spread diseases such as malaria, Zika and dengue

Ultrasonic device: Built into TV. Operates even when TV is off

LIVE FROM RIO DE JANEIRO

Also used in air conditioners and washing machines 

LG 32LH520D

Vision: 32in HD screen

Sound: 20W speakers

Cost: $399

62.7%

Percentage of anopheles gambiae mosquitoes repelled in clinical trials

HOW MOSQUITOES LOCATE HUMANS

10-50m: Mosquito detects CO2 plume from person’s breath

5-10m: Mosquito sees person

20cm: Mosquito detects thermal plume

HOW TV REPELS MOSQUITOES

Range of human hearing: 20Hz-20,000Hz (20kHz)

Above 30kHz

20kHz

Sound waves

Mosquitoes: Rendered inactive or motivated to leave area

Frequency above 30kHz used to repell mosquitoes

Sources: LG, Caltech, wire agencies

Picture: Associated Press