The flares last 15 minutes
Here is a photo after 15 minutes. The flare was running out and it started to smoke a little bit. Overall, the smoke wasn't too terrible from the flare and the smell was kind of cool and sulphurous.
When I am not carving pumpkins, I operate some of your favorite online stores:ShopInPrivate.com. OverTheHill.com RomanticGifts.com, and Bachelorette.com. I have a really fun job!
Finally, one secret fact about me is that I also own and run Vibrators.com. Yup, I sell sex toys and vibrators for a living (not porn though). I guess somebody has to. People sure do buy a lot of them.