No way, Paint scratches so easy its ridiculous. One swipe with a california duster is death.
Switch to just wiping the car down with quick detailer. Much safer.
I was also a car detailer for 4+ years and I have never scratched my mustang with the duster, obviously you don't want to use it if there is a huge amount of filth on your car, and shake it out before you use it. No scratches here!