As weird as it may seem, you do not usually have to scrub the air duct in your home, since the ventilation plan is a closed circuit, it doesn’t certainly get all that dirty most of the time. Some people might assume that the inside of the air duct might be dusty as well as filled with dirt however that’s not generally the case. I assume that once in a while, you certainly do need to get your air duct cleaned out. That was the case with us earlier this year because the two of us ended up having some drywall work done in the summer. I didn’t realize it before this, however if you have drywall dust in your cabin then it just gets sucked right into the ventilation system. The bad thing about that is that whenever your furnace or your air conditioner plan kicks on, the drywall dust gets sucked right in again as well as it happens over as well as over. I can’t even tell you how multiple times I dusted my cabin only to have the whole place covered in a thin pale white layer of dust all over again later! It was aggravating as well as finally I ended up calling the local HVAC supplier to have them come out as well as scrub the air duct. I asked them about it as well as they told myself and others that normally you don’t need to have air duct cleaned, however, when you’re dealing with things prefer sawdust or drywall dust, it’s always a enjoyable method to get your ventilation plan cleaned professionally afterwards. I’m certainly glad the two of us paid to get it done because after that the two of us had no more problems.