Easi-Fil Dust Away Renovation mud by CertainTeed is a drywall compound with a special formula that helps reduce airborne dust after sanding. When sanded, the dust particles clump together and fall directly on the floor, making clean up easy and keeping air cleaner. This general purpose formula is ideal for renovation and repair projects of all kinds. Use it for your next drywall filling or finishing job. It's also great for repairing or concealing joints, trims, and fasteners. This material reduces airborne dust by 70% compared with standard compounds!