Monitoring indoor air quality parameters can help minimize the risk of infection with viruses or bacteria, and increase overall well-being and concentration. With the advent of Covid-19, measuring and monitoring CO2 is more important than ever. Proper ventilation in crowded rooms can significantly reduce the risk of infection, including the coronavirus. Carbon dioxide (CO2) is a colorless and odorless gas that can be deadly in high concentrations. High levels of CO2 indoors can also be a strong indicator of inadequate ventilation, and continuous monitoring is essential for maintaining proper ventilation and indoor air quality in schools, offices, restaurants, warehouses and at home.