When I had my rural route, I bought a box of air masks. It always amazed me how the people that lived on those roads would tell me, “Huh, I never thought of that.”
That dust drove me nuts. I would open up my bulkhead door and the inside of the truck looked cloudy.
Another bad thing about gravel roads was after they were worn down, they would form washboards in areas where cars would slow down or stop. It would shake the truck violently. When the county grader would smooth them back down, they were fine, but the grader churned the layer of dust back on the road.
The only relief I ever got on those roads was when it would rain.
Although those masks worked well, they were hot as hell in the summer. If that route had paved roads, I probably wouldn’t have gone to feeders. I could’ve retired on that route.