The continuous measurement of CO2, indoor and outdoor air temperature and relative humidity was performed from the 1st of December 2022 to the 8th of December 2022. The indoor parameters were measured at 2 minutely intervals in all the rooms of the temporary houses for seven consecutive days (168 hours). Measurements were performed by placing one sensor in each room of the temporary house. Sensors were placed in every room as follow, away from windows and heat sources and at a height of 1.1 m to minimise the influence of the households nearby. Outdoor CO2 has been recorded through spot measurements. The adopted CO2 sensor has a calibration function (auto/manual calibration) to compensate for sensor drift that can occur over time.