Asthmatic children would be most responsive to daily changes in...

- Environmental Health Perspectives, Vol. 118, No. 10, October 2010

American Society of Heating, Refrigeration and Air Conditioning Engineers (ASHRAE)

Oct 17, 2014

Acceptable indoor air quality is “air in which there are no known contaminants at harmful concentrations and with which a substantial majority (usually 80%) of the people exposed do not express dissatisfaction.