Basement under a double wide?Just curious.
To deal with funky basement odors , or even funky weed smells or curry .
Just to add to that statement. There are currently no EPA registered products for use on Duct Board. These products are intended for only bare metal ductwork with no interior insulation.You can fog MediClean DSP or MediClean Fragrance Free it is EPA registered for HVAC and Duct systems here is a quick video