There are a few misconceptions about mold:
All Black Colored Mold is Toxic: Not all black mold is THE black mold that most people think of, stachybotrys. There are various other species that are also black in color and that can either cause a reaction in those exposed or not. Regardless of the type of mold, they are all remediated in the exact same manner and should be removed as soon as they are discovered.
Mold Always Causes A Reaction: Mold doesn't always cause a reaction, for some perfectly healthy individuals, there is no reaction when exposed to mold and some people only react to certain strains. This is what makes mold exposure illnesses so hard to detect.
If you cant smell it or see it, it isnt there: Mold also doesn't inherently have an odor. The odor that most people associate with mold comes from the secondary metabolite and is essentially a waste product of mold. A lack of odor does not mean a lack of mold and, because it is microscopic, it can often grow in places that you cant see. For example, it is extremely common to find there was an infestastion of mold behind kitchen cabinets or bathroom tiles that were not seen and emitted no odor but were found during a remodel.
Once the Mold Is Dead, You're Done: This is untrue, although making sure that the mold is dead is important, removing the source of the mold and anything that facilitates mold growth is equally important to avoid returning. Find a Local Mold Company who can help you with your needs.
Bleach Kills Mold: Bleach is only effective to kill mold when the area affected is both under 10 square feet and the surface that it is found on is nonporous. If the area is larger or if it is found on drywall, wood, or any other pourace material, using bleach is both ineffective and could potentially make matters worse due to the high water content of bleach.
If You Can Only See A Little Mold, It's No Big Deal: Not visibly being able to see mold growth, does not mean it is not present in a property. As stated above, it is very common to have mold growth in places that you cant readily see. If you only see a little mold on a wall, there is no way to tell how bad it might be on the other side of the drywall without cutting it out.