What TAB Technicians Should Know About Indoor Air Quality

摘要

The Environmental Protection Agency (EPA) defines Indoor Air Quality (IAQ) as: "The temperature, humidity, ventilation and chemical or biological contaminants of the air inside a building." This represents any condition inside the building that effects the health and comfort of the building occupants; including temperature, humidity, and the concentration of pollutants. The American Society of Heating Refrigeration and Air conditioning Engineers, (ASHRAE) defines Acceptable Indoor Air Quality as: "Air in which there are not known contaminants at harmful concentrations by cognizant authorities and with which a substantial majority (80% or more) of the people exposed do not express dissatisfaction."