Table 1.

Recommendations for kindergartens to contain the spread of SARS-CoV-2.

Protocols/Recommendations Regarding Air Quality and Thermal Comfort
Natural vntilated buildings	-Regular opening of windows wider than usual, even if this causes certain thermal discomfort. -Opening of windows to support correct ventilation before and after a space is occupied by several people Windows must be open for approximately 15 min before people can enter a closed space in non-residential buildings. -Recommended minimum air change of 6–12 changes per hour (5–6 for schools).
Mechanically ventilated buildings	-Constant ventilation through fresh air supply with the highest possible air flow, which does not circulate within the room.
Recommendations Regarding Thermal Comfort
All buildings	-Setting the temperature below 21 °C and humidity below 40% is not recommended, as these are optimal conditions for the survival of SARS-CoV-2.