Am I missing something here ... why would you want to "prevent cleaning"?
Do you mean to prevent folk touching it when they are cleaning the theatre following a procedure, or at the end of the day?
In that case, why is the machine still in there? And ... when does it get cleaned (disinfected) ready for use again?
Maybe you have more than one anaesthesia machine in the (or each) theatre?
Or ... do you mean keeping the machine covered at all times (including during operations), hoping to avoid cleaning? Why would anyone want to do that ... don't they normally bother to clean, then?
What do the theatre staff usually do with the anaesthesia machine between patients?
