We have a similar problem as others mentioned. A strong odor only in one room of the house, living room, and not always present. Typically when is it there, we notice in the morning and in the evening, but not usually during the day. Seems to be stronger during the hotter seasons, we're in S FL so it is often hot. Just don't know what to do. We've bleached, dehumidified and still can't seem to find the cause. Any suggestions?

Do you have any water pipes running under that room?

We have a similar problem as others mentioned. A strong odor only in one room of the house, living room, and not always present. typically when is it there, we notice in the morning and in the evening, but not usually during the day. seems to be stronger during the hotter seasons, we're in S FL so it is often hot. Just dont know what to do. We've bleached, dehumidified and still can't seem to find the cause. any suggestions?
Maybe your problem is under the floor, perhaps a animal crawled under and died there. Take care, love and peace anne x