Safely neutralizes unwanted pet odors using a blend of natural citrus and wood oils. The oils are contained in the green dot which is the top of a cavity that runs the length of the candle. The Pet Candle is an effective air freshener that does not mask odors, but leaves rooms fresh and clean. Lasts up to 50 hours. Burn for a minimum of 3 hours each time. Remove wrap before lighting and always place in a candle holder. Trim wick to 1/4 before lighting. Never leave burning candle unattennded or within the reach of children and pets.