How often should the windows in a room be opened?
To limit the risk of airborne contamination.
The room and the guests
Surface of the room
m
2
Ceiling height
m
Number of adults
Number of children
Ventilation of the room
None or poor (ACH = 0.5)
Medium (ACH = 3)
Good (ACH = 6)
Excellent (TRH = 12)
RECOMMENDED INTERVAL TO HAVE EXCELLENT AIR RENEWAL
RECOMMENDED INTERVAL TO HAVE GOOD AIR RENEWAL
CO2 level after one hour without opening the windows
Which corresponds to the following air quality:
How reliable is this calculator ? Below, an example
For more information on French Environment code, please consult
nousaerons.fr/infographic
.