I'm not sure where to post because I"m not sure the source of my problem. And, I don't know who to call. Please help with me as it's making me crazy and although I'm a little bit of a handyman myself, it's rather outside my knowledge. I am trying to troubleshoot a problem I've been having with smells in the house. They seem not to be related but I will tell you what I know. The first smell seems to primarily happen in the evenings, from say around 9-10:30. Out of the air conditioning vents, there is a very noticeable woody, sawdusty smell, almost like a wet brown paper sack. It only happens for a short while and then, it's no longer noticeable. On occasion, I've noticed it in the morning briefly but other than those two times of the day, I am not smelling anything like that coming from the air conditioning vents. The A/C system in this house is less than six months old (Trane) and has the continuous circulation feature so some air is constantly moving through the system all the time. If it were something specific to the air duct system or the A/C unit itself, I would think I would be able to smell it all the time since air is constantly on the move. Anyone have any ideas of what this might be? If I knew what it was, it might give me an idea of who to call. The other smell issue I have seems to be coming from my bedroom. At times, it smells exceptionally dank, almost sewer-like. There is no bathroom connecting to my bedroom, this is a single story home on slab, the plumbing is actually on the other side of the house, and strangely enough, because I keep the door closed to the bathroom, when I have noticed this smell in the bedroom, I can walk across the house and into the bathroom and it smells fresh. Because it was a sewerish kind of smell, I even have had plumbers come out twice and once, they smoke tested the sewer lines but found nothing at all. Thoughts?? As to the house itself, I'm in Austin, Texas, the house was built in 1984, has hardey (sp?) plank siding, and is on a slab.