Basically a mold clearance test is conducted after an initial mold inspection, followed by the professional remediation which basically sets up a containment and all the cleaning work is done inside of that.
So the steps are basically number one would be the identification of the source of moisture intrusion which led to the issue. The mold inspector then writes up what they refer to as a scope of work. The scope of work is interpreted by the remediation contractor as what needs to be done.
So the leak has been identified. The repairs made. The remediation company now has established containment and claim they have cleaned and dried the entire area within the containment.
Now we’re at the final step of confirming what the remediation contractor has done. We visually inspect the containment(s) that are set up for any possible breach in containment that would allow contaminants into or more importantly out of the negative air containment.
now we’re inside the containment. We’re evaluating the work that has been done by the remediation company. The containment needs to be clean and dry. The building material that was affected needs to be cleaned and sanded but more importantly the affected building material and all material inside the containment needs to be dry.
Now that we have established we have a clean and dry containment we can proceed with the sampling. Typically we would take an air sample inside the containment and we will take another sample in The Outside as our control. Then we would compare the two and this would give us an indication if the area truly been cleaned. Now if we have a especially large containment area we would take several samples within the containment and average those out. Also it is not uncommon to have more than one containment and that case we would just simply take the air sample in each containment and besos against our control of the outside sample.