Table 4.

Window opening ratio over the classroom volume (Aw/Vc) for each window opening configuration declared by the teachers.

Classroom	Window typology	Full opening windows	Partial opening windows	Aw/Vc [m−1]
A1C	Type A Tilt-and-turn windows with two casements	–	1	0.004
		1	1	0.015
A4B		–	2	0.007
		2	–	0.022
B4A	Type B Sliding windows	–	2	0.007
		1	1	0.017
B5C		–	2	0.080
		1	1	0.018
C3B	Type C Tilt-and-turn windows with one casement	–	1	0.004
		–	3	0.013
		–	4	0.018
		1	2	0.023
		2	2	0.038
		2	3	0.042
		4	1	0.062
C3D	Type D Vertical pivot windows	–	1	0.004
		–	2	0.008
		–	3	0.012
		–	4	0.016
		1	3	0.025
		2	2	0.034
		3	1	0.043