getting filler putty dust off paint

what’s a safe way to clean sanding dust off acrylic paint? it’s all over my already-painted tank hull. i was thinking of using cotton swabs or something. it’s model master red putty. works great but makes a mess.

try a dry brush, medium-stiff bristles and sweep it off

or, use air from airbrush and blow the dust off

just keep it dry for best results, dont use cotton swabs or it will stick to all the rivets, etc.

good luck