The air pollution in London is serious. According to statistics, the number of people who die from air pollution is as high as 9,400. In order to highlight the seriousness of air pollution, a bicycle rider Greg McNevin designed an LED mask, hoping to arouse public attention to air pollution issues.

Source: Greg McNevin

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

When the PM 2.5 value is between 0 and 12, that is, 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 35.5 and 55.4, the mask color is orange. PM2.5 over 55.42 is presented in red, reminding users that current air quality is very unhealthy for everyone.