I'm super lazy about dusting. When I had just 2-3 detolfs and a lot less toys I would meticulously take all the toys off of each shelf, dust the glass, and wipe off the toys. These days the only time i dust is if I move a shelf (just flipped two around the other day) or if I notice dust forming. The top, forget it. Surprisingly detolfs don't allow that much dust to get in. Good thing about these toys is, no matter how dusty they get it's nothing a damp cloth can't take off in 2 seconds.