My husband and I bought a 1970's house 1 year ago and when purchased the bathroom ceiling was very moldy. We bleached and repainted everything in the bathroom and got a new exhaust fan. We noticed that it wasn't doing the job so we installed an additional exhaust fan and still didn't do the trick. There is good air suction with both exhaust fans, but even if we leave it on hours after showers, yellow drips still remain on our ceiling. I don't know what to do? Its a 9x7 bathroom with two entryways and a window. The insulation in the attic needs to be replaced but it is insulated. My husband thinks that because we have two entryways and the doors aren't tightly sealed, that the exhaust fans are pulling air from the hallway and other room? I think its the paint? Any ideas? Please help!!!