air duct cleaning

Been looking into getting my air ducts cleaned for reasons too numerous to mention. Up until yesterday I had no idea there were air ducts made of materials besides metal. It turns out if mine are made of fiberglass board they are not even cleanable and I’ll have to get them replaced. I would...

where do I get air duct cleaning equipment in good prices, I need brushes, vacuum, etc. Anyone has any good places to get it? Thanks