Buildings and methods
Over the past two years we studied nine buildings in which mainly
clerical work was performed. In each investigation a standard, doctor
administered questionnaire was used. This inquired into nasal
symptoms (blocked/itchy/runny nose), eye symptoms (itching/
irritation/watering eyes), drying of mucous membranes (dry throat/
stuffy nose), symptoms suggestive of work related asthma (chest
tightness/difficulty in breathing/shortness of breath/wheeze), symptoms
suggestive of humidifier fever (fever/joint and muscle pains/
tiredness/headache), and symptoms of lethargy, nose bleeds, dry
skin, rash, itchy skin, and headache.