Defines acceptable indoor air quality, and provides methods to help achieve acceptable indoor air quality in office buildings, throughout the conception, design, construction, commissioning, operation, and maintenance stages. It applies to public-sector and private-sector buildings used mainly for office functions, and deals with contaminants normally found in these environments. Addresses indoor air quality issues such as ventilation and air distribution, temperature, relative humidity, air filtering, comfort, and the concentration of air contaminants.