Lots of car lots use them to blow lighter snows off of the cars.
The guys that spray waterproofing on foundations use them to blow dust sand and gravel off of the concrete so as to assure a good waterproofing coating.
I've used mine to sweep out my workshop LOL, sure got rid of most of the dust accumulation.
Open doors and windows and blow away, at least it removes the top layers.
Another time I put in suction mode, added a length of flexible duct on blower end, stuck the blower hose out of the window and proceeded to clean up layers of gyprock plaster dust.
Being a rainy day the plaster dust simply amended the topsoil as rain washed it in.