Anesthesia Patient Safety Foundation has issued a statement against the use of a single ventilator for such purposes.
https://www.apsf.org/news-updates/joint-statement-on-multiple-patients-per-ventilator/?fbclid=IwAR05DEFOSbJz65SgT0Sy9vOhypr4iw6NGio7T5jvdV9CAL7QryK9iPMeOmk
