I actually have no idea. I'm not familiar with hospital room turn over rate,staffing, or budgets. One machine can sanitize a standard room in 10 minutes with one operator. The current hospitals using it and treating it have 1-2 machines each from my understanding.
I believe 1 Annihilzyer system for 200+ bed hospital for room disinfection. if I remember correctly. Remember The Annihilyzer system is for rooms because of the patented RFID technology for CMS compliance.
In the past most saw video's of disinfection of whole town in China. For that the Annihilyzer would not be the best choice. The company does make systems that can produce 1000 gallons of HOCL a day. These systems are used more in the oil industry. This could be used to disinfect whole towns or as we also have seen NYC workers disinfecting everything in the city.