Google set ambitious performance goals across its global facilities portfolio, establishing key criteria and metrics. It has been designed based upon leading science-based research and considers the short and long term exposure of office occupants to low levels of air quality parameters. The IAQ program was developed to include parameters with associated target threshold that was determined based on known human health impacts and achievability on large scale commercial office buildings globally. The program requires more stringent targets than are required by third party green building rating systems or most other commonly used programs and guidelines.