The assessment of IAQ of the selected three buildings was conducted according to ICOP 2010.
The numbers of sampling point were determined based of the estimation of total floor area of each building.
The sampling points were considered the position of respondents and source of fresh air intake.
The measurement of IAQ was conducted two times in a day, morning and evening.
The instruments used to asses IAQ are TSI VelociCalc Air Velocity Meter (to measure temperature, relative humidity, carbon monoxide, carbon dioxide and air velocity).
A total fungal count was easured using SAS IAQ (Cat 37657) air sampler.
The samples were incubated for 5 days at 25 0C and then, the colony forming unit was counted.