Possible applications:Monitoring of doctors' practices, hospitals, nursing homes, etc.For all rooms, in which long and regular people are presentReliable reminder for regular train ventilationThe optical warning device detects increased CO2 loads in indoor areas, in which many people are regularly present. Typically, the classrooms, lecture halls, waiting rooms, offices with public transport, meeting rooms, but also production facilities, open-plan offices and, in general, function rooms and all interior rooms are available.1400 ppm CO2 in the room air are already considered very bad air, the maximum workplace concentration MAK is 5000 ppm in Germany, the CO2 traffic light medical reminds with its yellow light already very early from 800 ppm to the extensive train ventilation of the room.Those who have to breathe in bad and consumed air permanently become tired and lose their ability to perform and concentrate. This is particularly noticeable when learning and working. The immune system is also weakened, or noticeably strengthened and stabilized in the case of ever-fresh air wasOnly regular air-to-train ventilation, which is often and gladly forgotten, can help to prevent bad air. This is exactly where the CO2 traffic lights start. Not only does it warn of strongly increased harmful concentrations, but it also educates it to ventilate in time, even before the warning signal sounds at the highest warning level.How many square meters does a traffic light cover?CO2 of breathing air is distributed quite homogeneously in the room. In classrooms, there is a traffic light, a standard gym should be equipped with 2 traffic lights and a Pax400 Aula perhaps with 3 or 4 traffic lights. This is also related to the geometry of the room and cannot be expressed as a flat-rate figure in square meters.Does the device 24h remain on in continuous operation or is it switched on at every room use?The traffic light is suitable for both possibilities, if it is only switched on when using space, one can assume a longer service life.How long does the device take after it is switched on until it is ready for operation?In less than 90 seconds, the first meaningful evaluation takes place with immediately displayed result.On which side and at what height should the traffic lights be mounted?The traffic light is not mounted directly next to the windows on a wall in the middle. From her height, so high that the traffic light is visible from as many places as possible and at most so that the touch field for resetting the acoustic signal is still comfortable to touch with your hand.This text is machine translated.