02-06-2012, 10:22 PM
DRR wrote:
You know one thing you might consider especially if it's an older house, is duct cleaning. The furnace and the furnace filter are one thing but dust can easily travel from one room to another via the ducts. It could get sucked in one room and blown into your son's room just by the system turning on and off.
I second that emotion.
(You're all singing it in your heads now.)