EPA mold remediation guidelines 3

https://wiki-aero.win/index.php/How_to_Spot_and_Address_Mold_Under_Carpet_Before_It_Spreads

If you're dealing with mold, the EPA's guidelines stress fixing moisture problems first—without that, cleaning is just temporary. They recommend using soap and water for small patches, but for areas larger than 10 square feet, hiring a pro is smart. Always wear gloves and a mask, and never mix bleach with ammonia.