system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why do candles smell strongest when you blow them out?

Some context, I was sitting in my bathroom doing my business when I realized it didn't smell so good. I considered lighting a candle but in my head I thought, "What good is it? It's not going to do anything until you blow it out."
gpt
The scent is often oil based. If you burn the oil, you destroy the scent. But blowing it out, allows it to smolder thereby vaporizing the oil scent and filling the air with droplets of scent. (The same principle with incense sticks when you light them on fire, they smell stronger when you blow out the flame).