The air pollution in London is serious. According to statistics, the number of people killed by air pollution is as high as 9,400. In order to raise people‘s attention to air pollution problems, a bicycle rider Greg McNevin designed an LED mask to detect the degree of air pollution.

Black technology: LED light mask can detect air pollution

It is reported that this LED light-emitting mask is equipped with a sensor, operates with the AirBeam air monitoring system, and is connected to the AirCasting website via Bluetooth, which can change the color according to air pollution in real time.

When the PM 2.5 value is between 0 and 12, the air quality is good, it shows green; when PM 2.5 rises to 12.5 to 35.4, it turns yellow; PM2.5 is between At 35.5 to 55.4, the mask color will be orange; PM2.5 over 55.42 will be displayed in red to remind the user that the current air quality is very unhealthy for everyone.