HVAC mold cleaning

https://victor-wiki.win/index.php/How_to_Approach_Mold_in_Walls_Treatment:_A_Practical_Guide_for_Homeowners

When you turn on the heat or AC and that musty smell hits you, it's probably mold living in your HVAC system. Getting it cleaned out isn't just about the odor—it's about not breathing in spores every time the fan kicks on. A good cleaning involves treating the coils, drain pan, and ducts, which can really cut down on allergy symptoms and keep your system running efficiently.