Renew-Duster is formulated with new HFO-1234ze propellant,with a fraction of the global warming potential (GWP) of HFC-134a and HFC-152a based dusters. Renew-Duster is adrop-in replacement — nonflammable, odorless, has low toxicity, and similar temperature. Because HFO-1234ze is lighter than HFC-134a, there is more volume and blasts per can. Features & Benefits 100% pure HFO-1234ze GWP less than 1/100th of HFC-134a Nonflammable Air Duster Moisture free Zero residue Safe on plastics VOC exempt Velocity 12 m/s