Know what's growing in your home.
A simple petri kit and an app that tells you what it is, whether to worry, and what to do next. No six-week wait, no $400 inspector.
For informational use. Not a substitute for professional inspection or medical advice.
How it works
01Buy the kitOrder the kit. It ships to your door.
Six pre-poured plates, gloves, and instructions. Shipping is included, and six analyses in the app come with it.
See pricing →02SampleLeave a plate open in the room you're worried about.
Open a plate and leave it out for 1 to 2 hours to catch what is in the air, then close it. The app walks you through it.
03WaitCheck at 3 to 4 days. If nothing is growing, give it until day 7.
Keep the plate closed and somewhere out of the way. Warmer rooms tend to show growth sooner.
04ScanSnap a photo in the app. Our AI identifies what's growing.
Results come back within seconds. You can download a PDF report to keep or share.
05KnowGet a clear report: what it is, severity, and what to do next.
You get a severity rating of low, moderate, or high. The app guides you through the next steps from there.
Common questions
How accurate is this?
Built on lab-grade culture media. Real scientists trained our model. Years of experience and quality at your doorstep.
How fast will I know?
Check at 3 to 4 days, up to 7 if nothing shows, plus same-day results once you scan.
What do I do with the results?
Each report includes plain-language guidance and a clear verdict on whether to act.
Mold answers shouldn't take six weeks.
Mold testing today is broken. Inspectors cost hundreds and take weeks. DIY air monitors don't tell you what's actually there. We built Mold Buster because home microbial testing should be as simple as a pregnancy test, and as easy to understand.
What's in the kit
Everything you need to know.
- Six pre-poured culture plates for air sampling
- Gloves and instructions
- Six plate analyses in the Mold Buster app
- Plain-language report with severity guidance
First 100 signups get 10% off. We'll email your code.
Pricing
One kit. Everything you need.
Mold Buster Kit
Six plates, and six analyses in the app. Test the rooms you're worried about, and know what's there.
- Six pre-poured culture plates
- Gloves and instructions
- Six plate analyses in the Mold Buster app
- Plain-language report with severity guidance
Kits ship when the Mold Buster app launches, so the two arrive together. Leave your email and we'll tell you the day that happens.
Is this for you?
You smelled something and can't find the source.
Mold Buster gives you a clear answer.
You had a leak, and want peace of mind.
Mold Buster gives you a clear answer.
Your allergies feel worse at home.
Mold Buster gives you a clear answer.
Built on lab-grade culture media, by scientists who've spent years in quality control.
Not ready to order?
Leave your email and we'll let you know when the app goes live, plus the occasional update on shipping.