Wargocki P., Wyon D.P., Fanger O.
Bibliographic info:
Indoor Air , Vol 14 supplement n° 8, 2004, pp 7-16, 4 Fig., 4 Tab., 34 Ref.

For that study an experiment was conducted during 2 months, in a call center : each week 26 operators returned questionnaires recording their environmental perceptions and sick building syndrome symptoms. In parallel, the recording of their average talk-time was monitored every 30 minutes.The results of that study confirm that increasing outdoor air supply rates and replacing used filters with new ones has a positive effect on health, comfort and productivity of workers.