Co2 concentration, temperature and humidity in primary classrooms during the Covid-19 Safety Measures in Spain

Co2 concentration, temperature and humidity in primary classrooms during the Covid-19 Safety Measures in Spain. The data presented were collected between 1 May 2020 and 23 June 2021 using a low-cost CO₂ sensor called SCD30 (https://bit.ly/3dDWXu1). This sensor can messure CO₂, temperature and air humidity. Six nodes were built and deployed in six classrooms in two different schools in two different periods. In the first school, located in Vilafamés (Castellón, Spain), a total of 38,891 observations were carried out. Altogether 34,570 measurements were captured in the second school located in Vall d’Alba (Castellón, Spain).