This report from Carrier (May 2020) explains the various systems for indoor air quality and the ways to improve and monitor them. A generation of research and experience has proven that when properly maintained and operated, heating, ventilation, and air-conditioning systems (HVAC) can reduce the spread of viruses. HVAC systems work in a built environment to supply comfortable, clean, recaptured air, mix in healthy levels of fresh air, and contain or exhaust contaminants. Air delivery systems can reduce the transmission of viruses through inline filtration and are also critical in maintaining healthy humidity levels between 40% and 60% indoors which may help to limit the spread and survival of SARS-CoV-2 within the building, while minimizing the risk of mold growth and maintaining hydrated and intact mucosal barriers of human occupants.
Key words: Controls/Sensors, Energy Management, HVAC, Intelligent Building, Large Building Controls/Automation, Indoor Air Quality, COVID-19, Humidity