Between ten and fifty people the maths changes: contents scale with headcount and the mix of work, not the floor area. Responder 4 and Operator 5 kits carry the deeper fills — more dressings, more bandages, an eye module — that a busier site consumes. Wall-mount the main kit and keep a portable beside it for incidents away from the room. See small workplace kits, large workplace kits and kit refills.