dry dusting is like a dry sanding car skin
properly detailed car skin dont attract much dust and if car having sealant or wax coating than dust dont scratch clear coat harshly
well what i do, if car skin light dust layer ( usually my cars are sealed with sealants so sealnts dont attract much dust and what ever have its also blow away while drive the car by air flow and leave behind a very thin / fine dust layer) use detailer spray pat and dab pattern
if u dont have detailer spray u can use water moist folded microfiber for same purpose and keep changing microfiber folds to have clean side up
i also use california car duster, its having very soft rich 100% cotton strands which are paraffin wax coated
last option quick wash, make shampoo solution in spray bottle , rinse car with water, spray that shampoo solution on whole car and again rinse with water
baki bhai jan dont keep dark colour vehicles for daily driven in pakistan hehe silver is best colour for daily driven in pakistan 
