To fight against the spread of the coronavirus, schools in Lille have installed CO2 sensors in their canteens.

An essential detector that warns when the room is no longer sufficiently ventilated, thus reducing the number of new contaminations in the school environment.

After the students returned to class on Monday, the city of Lille has invested in CO2 sensors to fight against the coronavirus.

These sensors measure the level of CO2 in the atmosphere.

After a certain threshold, they signal, via a light diode, the need to ventilate the room.

An effective device, praised by Jean-Michel Blanquer, the Minister of National Education.

The city of Paris has acquired 500 sensors for its schools.

In Lille, there are currently 24 such devices.

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 "It is an effective tool at the time because, by the color it reflects, it gives you a signal. As soon as the light turns orange, you start to worry. You reinforce the ventilation between two meals. We wait before a second group of children arrives in the school canteen ", explains at the microphone of Europe 1, Charlotte Brun, assistant of the town hall of Lille in charge of schools. 

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A "simpler and more secure" device

The town hall of the city of Lille has only equipped its canteens.

"In a school canteen, it is even more important because the children, to eat, remove the mask. The building must be very well ventilated and there must be a very low concentration of CO2 in the indoor air" , underlines the assistant. 


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If the level of carbon monoxide is too high in the room, the CO2 sensor automatically opens the windows. "It's simpler and more secure for us," admits a school supervisor. In addition to the sensors, saliva tests will be gradually deployed in the city's schools. At the level of France, the government wants to carry out 400,000 saliva tests per week by mid-May.