An engineering graduate has created a new solution to the billows of dust which kick up when you drive down a gravel road.
David Pethybridge is developing 'RoadVac' - it's exactly what it sounds like - a trailer unit, which moves over the road and suctions up dust.
Tonight he will pitch the idea to 'E Tipu IFAMA World Conference' in Christchurch as one of 10 finalists in the Food, Fibre & Agritech Challenge.
David Pethybridge talks to Jesse.
Alex Wright said the roading package gave no relief to families on unsealed roads who had to breathe dust all summer. Photo: RNZ / Lois Williams