Sanding dust travels further than expected
Dust from sanding filler and coatings is very fine and travels well beyond the preparation bay on air movement. It settles on every horizontal surface in the building, including the tops of cabinets, light fittings, stored parts and, eventually, vehicles waiting for collection. Sweeping returns a large proportion of it to the air, which is why the problem seems to recur.
Vacuum capture with appropriate filtration is the required method, together with a high-level cycle that clears the reservoir on structure and fittings. Where the site uses extraction at the sanding position, that helps considerably, but the extraction unit itself, its filters and its ducting remain with the operator and are excluded from the cleaning scope. Recording the high-level surfaces by name is what ensures they are attended, since a general instruction produces attention to reachable ledges only.
