Table 1.

Characteristics of the classrooms.

Building	Id Class	Area [m2]	Volume [m3]	Orientation	Occupation Pre-Covid-19 [Seats]	Occupation Ratio [m2/Student]	Occupation Covid-19 [Seats]	Occupation Ratio [m2/Student]
Building 1 (ETSIE)	B1-A1	175	524	East	96	1.82	48	3.27
	B1-A2	167	500	West	61	2.73	35	4.77
Building 2 (ETSICCP)	B2-A1	172	518	North	156	1.10	78	2.20
	B2-A2	174	522	South	156	1.12	78	2.24