At RHMM we can do a physical test whether there is a source of an indoor air problem caused by mold.
By analysing the spectrum of data obtained from such a test we can determine the fingerprint of a specific mold type that causes the problem.

Mold Spore Concentration test:
Example of test results for various home conditions:

These are screening tests inside and outside the house to determine if mold amplification exists in your home by certain mold types that are known to be unhealthy for the inhabitants. A certified national laboratory will perform the sample analysis.

The first two sets of three measurements were taken in the same building before and after the mold remediation
The last set of three tests were taken in a building without excessive mold growth and are shown for comparison.

In each set of three measurements the O is a test background done outside.
B means bedroom or basement and C means in crawlspace. FL is a measurement done near the floor in a suspect area.

The first set of three test results shows that the mold infested building was identified because the spore levels inside were much higher than outside.
The second set of three test results shows that the building had been successfully remediated to the point that the residual molds are not expected to cause a health concern in the home.


The importance of an outside test is even more apparent by looking at the following set of three mold tests for a home where we have drawn lines beteween the identical mold spore types to guide the eye.
If the lines go upwards mold growth for that type of mold may be suspected in the indoor environment. Therefore the house where these tests were done has no suspect mold growth, and the outside air mold spore concentration is relatively high, influencing some mold spores to be present inside because of the natural ventilation rate of the house.

If one (or a few) type(s) of mold is growing excessively inside the building one will see the(spore-) fingerprint of that mold type deviating fromt he rest in the spectrum of mold spores.