Sulfur Burner Exhaust Questions - Please Help

I'm about to use a sulfur burner for the first time. I have it on a timer to come on for 3 hours at lights out. Then I set my exhaust fans to kick back on two hours after the burner shuts down. My exhaust is directed into a different area of my house though, not outside or in an attic. After the burner shuts off and the sulfur settles for a couple hours is this safe? Should I let it settle longer? Or do I need to mess with my exhaust for the nights when this thing burns? I read it's toxic, so at what point is it okay to exhaust with my current set-up?

Also I read another really old thread to turn off oscillating fans, but others have said to keep them on and mix it up - can anyone speak to this?

Lastly, can anyone tell me how much sulfur to add to the cup as a measurement, not just "fill it up half way" or "fill it up an inch."


Thanks