W.H. Demmons Air Purification Systems

A critical safety aspect that Portland Stage had concerns about as an indoor venue was the update of the building’s HVAC system. The HVAC system installed by W.H. Demmons uses bipolar ionization technology, which releases charged atoms that attach to and deactivate harmful substances like bacteria, mold, allergens, and viruses by pulling the hydrogen atom away, causing the harmful substances to die. Testing of this system for effectiveness against the COVID-19 virus by two different independent laboratories, Analytical Lab Group and Innovative Bioanalysis, revealed that the level of the virus is cut by 90% within 60 minutes.