I always tell my customers to remember this.... dust may look bad temporarily, but swirls look bad permanently!
I personally don't recommend dusters or even quick detailers for removing dust/pollen build up. I would recommend rinseless washing with
Optimum No Rinse every couple of days if you must as I feel the rinseless washing provides far more lubrication than quick detailers or especially dry dusting.
Call me paranoid... but better safe than sorry
-Zach