I work in an office in Alameda California with about 20 co-workers. Over a period of 3 weeks we had two guys faint (one of the guys fainted twice). We want to determine whether these symptoms could possible be related to the office environment. We planto bring in an industrial hygienist to sample the air quality – but we need to tell him/her what to sample for. In reading the literature, it looks like we should sample for CO and CO2 – even though no one is complaining of headaches.
How likely is it that these fainting spells are related to indoor air quality, and if it’s possible that they are related, what pollutants should we be testing for?