This is where I think there could be an issue. What is ‘more regularly than normal’? If the loos and tables are wiped over each day usually, then wiping them twice a day satisfies the guidance. Equally if light switches are usually wiped once a month then wiping them twice a month would fall within the guidelines. I’ve spent countless hours in classrooms after school whilst the cleaners work around me. Table tops and desks wiped, carpet hoovered, halls mopped and loos bleached - all of these I’ve seen / heard / smelled. I cannot ever recall seeing the cleaners wipe the light switches or door handles, nor clean the toys or books. I imagine these were usually done as part of a deep clean at the end of term, not as something routinely done on a daily or weekly basis. I doubt they’d be allowed anywhere near it, due to COSHH regulations. In fact you may find it can’t be used if the children are in the room. I don’t actually know, but I’m hazarding a guess here.