A rule a crew can apply without knowledge
In a store holding technical equipment, a cleaner has no way of assessing what is sensitive, what is expensive and what is simply a box. Asking them to use judgement puts them in an impossible position and puts the asset at risk. A rule based on category rather than on value works far better: clean the building, do not clean the contents. It also removes any suggestion that a crew was expected to know better.
That distinction is easy to state and easy to check. Floors, structure, gangways, doors, light switches and the surfaces belonging to the room are in scope. Anything that arrived on a pallet, anything in packaging, anything with a cable, and anything bearing an asset label is not. Written this way, the instruction survives staff changes and does not depend on anyone recognising a particular item. Sites with a rotating overnight crew find this the only instruction that holds.
