Prostitution is clearly not a job like any other when the people who would be employed to clean the room have to follow more stringent H&S regulation that the prostituted women.
There is no way to make prostitution compliant with H&S regulations that every job has to follow, therefore, it can never be a job, and anyone employing a prostituted woman should be prosecuted for doing it, just like if I tried to pay someone to shimmy up my drainpipe to clean my windows rather than use a proper ladder, or if I told someone to clean toilets without gloves, or if hospitals just chucked blood-soaked supplies straight into the wheelie bin outside.