Distributed LoRa based CO monitoring network - A standalone open source system for contagion prevention by controlled ventilation.

In the face of a global pandemic, such as that caused by the SARS-CoV-2 virus, the prevention of new infections is essential to stop the spread and ultimately return to normality. In addition to wearing masks and maintaining safe distances, regular ventilation in enclosed spaces where several people are gathered has proven to be an effective protective measure as advised by the World Health Organization. Additionally, as has been shown in a recent study of other airborne viruses, there is a strong correlation between the COlevel and aerosol content in a confined space under the assumption humans are the only COsource.