Nilfisk 1m x 32mm aluminium wand for high cleaning beams and pipes and air-conditioning vents in arenas, churches and theatres etc with a vacuum cleaner, or use instead of two 560mm steel wands to reduce weight. Join several together, but be aware of hazards.
Good housekeeping for industry, removing build-ups of potentially combustible explosive dusts in flour, sugar and cotton mills, as well as where coal or wood dust is present.
At the moment, as postage is capped at a maximum of $25, maximise the saving on postage and buy some of the related parts below, such as dustbags and the filters or a new floor tool!