What this video covers
The clip is about using a DIY kit in the way that actually produces useful information.
Tape lift sampling beats an air test for home use. A tape lift tells you what is growing on a specific surface you are worried about, which is a question with a clear answer, rather than sampling air that always contains something.
The takeaway
Sample the surface you suspect, not the room. A targeted tape lift answers a specific question, while a general air test mostly tells you that you live in a building.
Read the full written guide: How to Use a Mold Test Kit.