I am sampling one AC vent in my home. The vent grills have what appears to be dark mold on them. I would like to take a sample from the surface of the grills (visual mold) and also attach the petri dish to the same vent. Can I put the surface mold on 1/2 the petri dish and leave the other half empty when I attach the petri dish to the AC vent. If I need to use 2 tests, one for the air flow coming out of the AC vent (attach to the AC vent) and one for the surface mold, is it ok to swipe the surface of both the grills and the inner wall of the same AC vent. I didn't know if I need 2 test kits for sampling the AC grills and the vent wall on the inside of the AC grills. It is black with suspected mold growth too, unless it is just dust.
Pro-Lab, Mold Test Kit
Mold & Mildew
Status:
Open Oct 20, 2021 - 07:21 AM
1answer
Staff Answer
Oct 20, 2021 - 01:51 AM
You should isolate one petri dish for each sample you take. You cannot combine half petri dish for one and half for another, that will corrupt the results.I think your logic is sound that the same mold that is on the surface will be what collects from the visual mold, however, if your estimation is wrong and that is dust or some other thing, it will not show up as a result in the mold testing kit.
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Pro-Lab, Mold Test Kit
48-hour mold test kit Pro-Lab's Mold Test Kit offers an easy, do-it-yourself test for toxic mold; it gives accurate results within 48 hours. Three sampling methods are available: take a visual sample of mold growth in home or office take an air sample of the air-conditioning or heating system ta...
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