Open candle and place on flat surface inside of metal lid, away from walls, and flammable items. Burn for 3 hours continuously on first use to achieve optimal effects. Burn for one hour each day afterwards for mold maintenance. When finished burning, use a candle snuffer to put the flame out. We do not recommend blowing it out. Trim tip of wick before each use for best results. This reduces soot and smoke indoors. Each candle has a burn life of approximately 16 hours. A general guideline is to use one candle per 600 square feet of indoor space. Keep out of reach of children and pets. Do not leave burning candle unattended. Do not use EC3 Air Purification Candles if you are allergic to soy.