The guidelines for carbon dioxide levels within a building introduced by the American Society of Heating, Refrigerating and Air Conditioning Engineers are voluntary standards, according to the Aerias website, unless they are adopted by state government agencies as legislation for indoor air quality. Does this Spark an idea?
ASHRAE
ASHRAE was established in 1894 to provide technical and educational information on air-conditioning, ventilation and refrigeration techniques. ASHRAE is accredited to the American National Standards Institute for the development of minimum standards or acceptable performance.
CO2
Carbon dioxide (CO2) is measured under ASHRAE guidelines to evaluate the amount of ventilation of outdoor air entering a building, according to the Illinois Department of Public Health. Carbon dioxide is exhaled in human breathing and can build up in buildings, with levels over 1,000 parts per million (ppm) being a sign of inadequate ventilation.
Levels
The Illinois Department of Public Health reports that outdoor levels of CO2 are 300 to 400 ppm, while ASHRAE guidelines report a healthy average CO2 indoor level to be 800 ppm. CO2 levels show whether a building has ventilation levels of the ASHRAE-recommended 15 to 20 cubic feet of outdoor ventilated air entering a building for each occupant.
Tags: ASHRAE guidelines, Carbon dioxide, Department Public, Department Public Health, entering building, Illinois Department, Illinois Department Public