Here is what I know so far.
There are two test swabs per kit. Each swab is for a single use. Thsi tests surfaces for contamination from a number of biologicals including bacteria, mold, viruses, some allergens and bodily fluids.
The results will show as either a pass (No contamination) or varying shades of color that indicate the degree of contamination.
Still looking for more information.
This would be used as a preliminary test to show if further and more detailed testing needs to be done. In some situations it might be suitable for a final or clearance type testing, but I don't think it gives the degree of accuracy or the specific contamination sufficent for clearance testing in most situations.