True and true. OTOH... "Natural antibacterial properties" is not a regulatory certification. The hospital is regulated, and may also feel responsible for mak

True and true. OTOH... "Natural antibacterial properties" is not a regulatory certification. The hospital is regulated, and may also feel responsible for making sure that they can 100% sterilize surfaces - after those have been exposed to a wide variety of bacterial, and fungal, and viral human pathogens. Maybe add prions to that list. My rhetorical fire marshal isn't the point. Fire behaves very differently when oxygen levels are elevated. Are you familiar with how wood fires behave at various % O2 levels? (I don't actually know that 30% O2 is the hospital fire safety standard. The standard my vary by state, or be higher in ICU's, or etc.) EDIT: Bigger picture: Yes, using wood looks plausible. And it could help patient, staff, and visitor moods. But hospitals are not a "just try it, and see what goes wrong" use case.