Arrived hone last night to a disaster. Construction crew was filling the interior walls of my apartment building with new insulation. They busted through one of the walls in my closet and filled the whole closet with dust and insulation. They cleaned it all up and vacuumed the majority out of my shoes (you can see the 4s are FULL of insulation) but there is still some left behind and it really shows on black nubuck. Best way to clean these back to good condition? Planning on grabbing a can of compressed air but anything else that will do the trick?