“Hygiene Theater” 1 for the purpose of this article is defined as the practice of visible but ineffective cleaning rituals based on surface-level optics and not on scientifically backed measures that address how infections in healthcare facilities are spread. The COVID-19 pandemic and healthcare acquired infection (HAI) concerns fueled widespread fundamental and applied research and testing of commercially available approaches and devices aimed at improving indoor air quality, targeted cleaning of high-touch surfaces (HTS), and verification through testing/monitoring and effective communication of the infection control measures being implemented. Read More