Getting dust off doesn't usually require much force. The rocket would probably do fine. Just blowing with your mouth works well, though that requires caution too, it helps to swallow first:o
Soft camel's hair brushes work very well, either plain ones, or Static Masters.
I use a Static Master when blowing doesn't work. But it's the same as a plain brush now since the cartridge expired years ago.
Another device that works well for blowing, similar to the rocket, and probably cheaper, is a baby ear syringe.
Hint, never let anyone "pet" the brush.