Skip to main content
. 2023 Aug 12;9(9):e19120. doi: 10.1016/j.heliyon.2023.e19120

Table 6.

Minimum air change rates in resulting ACH rates (h−1) set by the different regulative documents for the analyzed classrooms.

 Analyzed classrooms
Regulation A1C A4B B4A B5C C3B C3D
DM 1975 [44] 2.5 2.5 2.5 2.5 3.5 3.5
EN 16798 [16] 4.2 4.7 4.8 5.0 4.0 4.2
WHO [17] 4.8 5.5 5.7 6.0 4.5 4.9