A display assembly for containing and displaying perishable products includes a case having at least one wall and defining an internal volume, a quantity of gas contained in the case, the gas including ethylene emitted from the perishable products, and an electro hydrodynamic thrust device positioned in the case. The electro hydrodynamic thrust device ionizes a portion of the quantity of gas. The ionized gas includes at least one reactive oxygen species, and the at least one reactive oxygen species reacts with the ethylene to break down the ethylene.