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Reports dense air in the classroom

spexor supports regular ventilation during lessons

spexor in school

Reduce the spread of viruses in classrooms through regular ventilation

In connection with the Corona pandemic, the German Federal Environmental Agency has recommended that classrooms be regularly aired every 20 minutes with the windows wide open.
To avoid the risk of infection by virus-contaminated aerosols in closed rooms, only air exchange can help. While outside the viruses are dispersed by wind or killed by UV radiation, the virus load in indoor areas, such as classrooms, increases without regular ventilation. For good reason, an "L" has been added to the AHA rule, because ventilation is one of the most effective everyday measures to significantly reduce the risk of infection.
In addition to reducing the risk of infection from aerosols, regular ventilation has other benefits: According to experts, chemical substances and CO² are also effectively removed from the air. The latter, in too high a concentration, can lead to fatigue and poor concentration. Ventilation also removes moisture, which reduces the risk of mold growth.
If there are many students in the classroom, the air volume is low and potentially virus-contaminated particles in the room are comparatively high. However, the likelihood of infection is influenced by several factors, including how many people are in the room, how active they are, how large the room is, how often the air is changed, and what ventilation is available. Most schools do not have a central ventilation system, so opening the windows is often the best and only option to replace the stale air in the room with fresh air.

How can spexor support you?

Conventional air quality monitors are usually purely measuring devices for carbon dioxide (CO²). Yet it has long been scientifically proven that elevated CO² levels are usually the least of the evils in bad air. The gas sensors in spexor detect almost all organic, gaseous compounds in the air that can become dangerous. They measure the concentration of volatile organic compounds, or VOCs for short, every 30 seconds. These include gases that are produced, for example, during respiration, but also as a result of perspiration, cooking, cleaning or outgassing from new carpets as well as furniture. Thus, the sensors measure hundreds of different contaminants. spexor thus reacts much more broadband and sensitively than measuring devices that consider the CO² value alone.

By measuring VOCs, spexor meets the recommendations of the German Federal Environment Agency and the World Health Organization. Both institutions have been advising for several years that indoor air quality should not be measured purely on the basis of CO2.

How it works

three spexors light up green, yellow and red

spexor is set up with the free app. It's easy - download the app, scan the QR code, place spexor in the center of the room and get started. Our video shows how easy it is to put spexor into operation.
With its integrated air quality sensor, spexor measures volatile organic components (VOC) in the classroom every minute, measuring hundreds of different contaminants. Thus, spexor reacts much more sensitively than measuring devices that consider the CO² value alone.

The air quality is displayed in the app as well as via spexor's LEDs. If spexor lights up green, the air quality is good; if spexor lights up red, the air quality is poor and the risk of spreading viruses increases. If the signal is orange, the air quality is moderate - depending on the outdoor air quality, ventilation may be advisable. In addition to air quality, the app also indicates the temperature and humidity in the room.

CO2 traffic light system

CO2 traffic light system

The air quality is poor: please ventilate

The air quality is moderate: ventilation can help

The air quality is good: windows can be
be closed

In addition, any other sensors from the toolbox can be added, such as PM2, CO2 and many more

Please consider when using in the classroom

the screen of the Air quality measurement screen
  • spexor should ideally always be located in the same room. This way, the sensors can adjust ideally to the respective room conditions and thus measure more precisely.
  • If the classroom fills up quite quickly in the morning, it is likely that the spexor LEDs will briefly light up red. Shock ventilation helps.
  • spexor can be used with or - thanks to the integrated rechargeable battery - without a charging cable. We recommend using it with power supply for faster data transfer.
  • If there is no WLAN or a poor cellular connection, it is possible that the values in the app are displayed with a slight delay.