Limited Time Offer
Check every room in the house basement, bathroom, attic, and your HVAC vent.
30-Day Satisfaction Promise
30-Day Money Back Guarantee
Not what you expected? Send it back.
Results in 48 Hours
Watch it develop. No waiting on a lab.
Four Tests Per Box
Enough for the basement, bath, attic, and HVAC vent.
Optional Lab Analysis
Mail a sample to certified US microbiologists to identify the species.
Frequently Asked Questions
What's in the box?
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Four complete tests. Each one includes a petri dish, growth medium, and a sterile swab, plus instructions for all three testing methods: indoor air, your HVAC system, and direct surface sampling where you can already see something.
How long until I get results?
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You'll usually see visible growth within 48 hours. Some slower-growing species take up to five days, so give it the full window before you call a test negative.
How accurate is it?
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It shows you whether mold spores are present in the area you tested, at the time you tested. That's a screening tool, not a lab report — it won't tell you the species or the concentration on its own, and mold spores exist in essentially every home at some level. What it's genuinely good for is comparing rooms: run tests in the basement and a room you're not worried about, and the difference tells you where to look. If you want species identification, use the mail-in lab option.
My test grew something. Now what?
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Some growth is normal and expected — outdoor air carries spores into every house. What matters is a dish that's dramatically heavier than your comparison rooms. If one room stands out, or you're seeing growth alongside visible staining or a persistent musty smell, that's the point to bring in a certified mold inspector for a proper assessment.
Where should I test?
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Start where moisture collects: basement, bathroom, under sinks, laundry area, attic, and your HVAC supply vent. With four tests, run one in a suspect room and one in a room you consider clean — the comparison is what makes the result meaningful.
What if I'm not satisfied?
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Send it back within 30 days for a full refund.
Why Celvorae?
Most kits give you a single test. This one gives you four — enough to check the basement, the bathroom, the attic, and your HVAC vent, instead of guessing which room to spend it on. Visible results in 48 hours, with optional lab analysis if you want the species identified. Not right for you? Send it back within 30 days.