A simple at-home kit for testing multiple areas of concern with confidence.
Petri - 4-Test Home Mold Kit
Top Choice!
30 homeowners are checking this out
$39.99
$49.99
SAVE $10
Easy-to-use kit for four separate test spots
Test more than one area with a single kit
One kit for rooms, vents, and problem spots
BUNDLE & SAVE
30-day return window If something doesn't suit your needs, contact us and we'll review the best solution.
Get it between and
— free shipping and tracking.
See it in use
Over 16M views on TikTok
Petri - 4-Test Home Mold Kit
Check Your Home Faster Clearly
Check Your Home Faster Clearly
Four Separate Tests
Check multiple spots with one kit so you can compare results with less guesswork.
Easy Home Use
A straightforward setup helps you test areas around the house without hassle.
Organized Sampling
Keep each test separate for a cleaner, clearer read on different locations.
Peace of Mind
A practical way to check concerns sooner and make informed decisions.
Real experiences from customers using our At-Home Mold Test Kit.
Sarah M, 24
Confirmed Purchase
“I wanted to check a few areas after noticing a musty smell in our bathroom. The kit was straightforward and easy to set up.”
Jordan H, 34
Confirmed Purchase
"I used all four tests around the house and the process was simple to follow. It gave me a much better picture of what to check next."
Taylor S, 42
Confirmed Purchase
"Having multiple tests in one box made it easy to check different rooms without buying separate kits."
How Petri Stacks Up Against Single-Test Kits
How Petri Stacks Up Against Single-Test Kits
Our 4-Test Kit
|
Other Single-Test Kits
|
|
|---|---|---|
|
Simple at-home use
|
Yes | Yes |
|
Separate samples
|
Yes | No |
|
Clearer comparison
|
Yes | No |
|
Better for checking multiple areas
|
Yes | No |
|
Support included
|
Yes | No |
Ten Minutes of Setup. That's It.
From opening the box to reading your result. No tools, no training, no professional visit.
Step 1
Pick your spot
Basement, bathroom, attic, under a sink, or your HVAC supply vent. Anywhere moisture collects. Run one test in a room you're not worried about too — that's your baseline for comparison.
Step 2
Take the sample
Three ways, all in the box. Leave the dish open to the air for one hour, hold it near a running HVAC vent, or swab a surface directly if you can already see something.
Step 3
Seal it and wait
Close the lid, set it somewhere at room temperature and out of direct sun. Label which room it came from — you'll forget.
Step 4
Read it at 48 hours
Growth is usually visible by then; slower species can take up to five days. Compare against your baseline dish. Want the species identified? Mail it in for lab analysis.
Petri Kit Questions
What comes in the box?
+
You receive a home mold test kit with four separate tests for checking different areas.
How do I use it?
+
Follow the included directions, use one test per area, and keep each sample labeled.
Can I test several rooms?
+
Yes — the four-test format makes it easy to check more than one room or location.
Is it useful for regular home checks?
+
Yes. It works well when you want a practical way to monitor areas around the home.
Is it a good option for spot checks?
+
Absolutely. The kit is ideal for checking specific areas that you want to review more closely.
What if I have a problem with my order?
+
Reach out to us and our team will assist with your order.
See The Difference. Simple. Clear.
Get a practical home testing kit that helps you check multiple areas without overcomplicating the process.
-
Secure Checkout
-
10,000+ Homes Tested