"Green apple" scented Re-Fresh Smoke Odor Eliminator has always been the most effective odour eliminator on the market. Now it’s even better. A new patented ingredient, SE-500 boosts the natural odour-eliminating power of Re-Fresh to make it more effective than ever. The concentrated long-lasting formula makes Re-Fresh the most economical investment in odor control you can make. More than 750 mists per 4-oz non-aerosol spray can.