These are a few of hundreds of areas where hidden mold grows indoors.

Air Vent Registers

Mechanical Condensate Drain Lines

Inside Walls

Inside and Underneath Sink Cabinets

Wall Behind Sofa

Inside Laundry Tub

Behind Loose Wallpaper

Underside of Roof

These few photos should illustrate the importance of mold inspections.
It is common to find multiple areas of hidden mold contamination actively growing and spreading in homes.
Depending on the mold infested areas, some can be remedied by home owners who follow specific instructions, while others might require a professional mold remediation company.