How long does the smell of incense last after burning?

How long does the smell of incense last after burning? 12 Answers Alex Torres, Incense Aficionado Answered September 27, 2020 · Author has 121 answers and 106.5K answer views The amount of time the aroma sticks around depends on quite a few factors, such as the burn time of the incense stick, the ingredients the incense is made from, and the airflow in the room. Typically, it would last anywhere from 1 hour to 24 hours after the incense stick burns out, but it depends on the factors mentioned above.