The RDG-M Dym instant smoke hand grenade is designed to create instant smoke screens to camouflage law-enforcement officers against enemy accurate fire during special operations.

The smoke screen is non-transparent in the visible band throughout its smoke-screen time, and in the infrared at the moment of its generation. The grenade is charged with a phosphorus-based smoke-generating mixture. The RDG-M Dym has no explosive charge, and, thus no fragments, capable of inflicting injuries.