We have lived in this duplex townhouse for over 10 years. It is relatively "new" in that it was built less than 15 years ago. We have gas/ forced air furnace. While we have been stable tenants, next door has seen many come and go. About 6 months ago a family moved in and they are heavy smokers...

I just built a new house and have water well about 2 years old. I have bad smell like rotten eggs. I'm not sure what to do. Its pretty bad!!

How do I get rid of bathroom odors now?

Help- I have a situation where I must create the odor of rotting garbage and human waste. No, this is not a joke, it is a paying job. (Not much, but a job). I need to cover an area about 100' x 100' for 5 seconds or so. I can launch a chemical into the air, fan out a powder, or? Any ideas are...