This product is really effective! It has been successfully used to remove the odors from burnt microwave popcorn! It works on funky smelling condos, beach houses and hotel rooms. Burn for 30 to 40 minutes and you will notice the effect. Neutralizes smoke odors as well as cooking odors. The Odor & Smoke Eliminator works unlit, too. Burn time for the 10 ounce candle is about 80 hours.