Though there was an exception – a ventilated
lecture hall where I/O ratios observed in the afternoons
(0.4 in 2002 and 0.3 in 2003) were lower than in the
mornings (0.8 in 2002 and 0.4 in 2003). Extremely high
values of I/O ratios in afternoons reaching 1.3–3.5 were
found in 2003 in the following rooms: librarian lending
room and reading room, canteen, corridor and toilets