Hi eaters, I realized that earlier today (about 3 hours ago) after cooking lunch, I accidentally left the gas on in my apartment. The flame went out, but I didn't turn the knob down enough to stop the gas escaping slightly. The smell of it was very faint, there's no leak, and I immediately turned the knob all the way off, opened all the windows and turned on the vent fan, which has been going a little over 10 minutes now. Now I can't smell it at all and my apartment is full of a lot of nice cool breezes, but I obviously have no interest in getting blown up. When do you think it would be safe to turn a flame back on?