100 Packs Sterile Thick Plastic Petri Dishes with Lid, Vabiooth 90mm Dia x 15mm Deep Clear 3 Vents Petri Dish for Lab Science Experiment

Product arrived as expected. Only negative was the instructions did not include testing for airborne mold. However, a great positive is that this company has a qr code for FREE assistance. I used this free service both for instructions on airborne testing and then to help me analyze my results. They helped me identify my test growths and offered information on how this spore might affect our health, cause of growth, and how to remediate. Overall I was happy with the product and the support. Following are the instructions for airborne testing.... Yes, the PDA Petri dish can definitely be used to detect airborne mold spores in your home using the 'settling method.' In fact, you just need to follow the idea of 'exposing it to the air' to make it work. 💡 Core method: Plate settling method Technically, this method is called the 'plate settling method.' It is based on the principle that airborne mold spores naturally settle by gravity. If they land on PDA — a culture medium specifically designed for mold growth — they will germinate and grow under suitable temperature and humidity conditions, eventually forming visible colonies. By counting these colonies, we can roughly estimate the concentration of mold spores in the air. At the selected location, open the Petri dish lid and leave it exposed for 30 minutes. During this period, keep doors and windows closed, and avoid walking, sweeping, using fans, or any other activities that disturb air circulation. ➡️ This is the key step that replaces swab sampling. Sealing and incubation After exposure, close the lid and seal the dish tightly with plastic wrap to prevent spore dispersion. Place the dish upside down in a suitable room‑temperature environment, and incubate it away from light for 5–7 days, observing daily.

This was informative, the ID service is excellent and I would highly recommend this to anyone looking for an at home test.

worked great for what we needed them for we used 5 of them for a science experiment, and it seemed to work just fine.

This review goes along with the one for the logbook. My nephew had a school science experiment, of his choice, to complete in 30 days. He decided he would test surfaces and see just how dirty they were. Well, wasn't he surprised to see all that stuff growing from the agar I poured in the dishes? Stuff he swabbed from the counter, light switches, floor (in varying places), doorknobs, and even the toilet seat! They hold up nicely, as he is a little clumsy and dropped a couple, none broke. It might have affected the outcome of the experiment, though. But it was only 2, I believe. The value is great, getting 10 in one go. I was concerned when I bought them about the lid-locking, and most did. The ones that didn't, we taped shut. The experiment was a partial success as it didn't get him to wash his hands more often, but the teacher was impressed.

It’s plastic and easy to clean. I use this to display my product sample at the trade show.

These dishes were used for my teenage grandson for his Science experiments. He was so excited to use them. He really loves them. When you see a teenager,gets excited about an experiment,you have to be extremely proud. Thank you very much. It was worth every dollar that I spent.

The Petri dishes worked well. Helped a great deal with the project that I needed them for. Would buy again if needed in the future.

Empty Petri dishes . Who has the stuff that grows bacteria just laying around the house . Amazons choice pshhhhhhhh

Good Petri dishes. 10 dish were in a sterile sealed bag. I only poured 9 because I never made enough agar but I got no contamination while pouring inside a SAB. Would love to be able to order in bulk.

I really do wish they would stop using camera angles to enhance their product.