What's In Your Air?
Your Filter Knows.
No appointments. No strangers in your home. No pants required.
Serious science. Delivered without the serious attitude.

You're Breathing Something.
Mold spores. Allergens. Mystery particles. They're floating around your house right now having a great time. Meanwhile, you're over here sneezing and blaming the cat.
Maybe it's time to find out what's actually going on.
How It Works
Easier than assembling IKEA furniture. Actually easier than everything.
Get Your Kit
Pick your test. We ship it to your door.
A few days and it's there.
Collect Sample
Attach a patch, cut your filter, or swab a spot.
Pick your adventure.
Mail It Back
Drop in any mailbox. Prepaid shipping included.
We even handle the stamps.
Get Results
Report hits your inbox in 5–7 days.
In English. Not scientist.
Pick Your Test
Three ways to test. All easy. None require talking to strangers.

AirPatch
Stick it. Wait. Mail it. Done.
"I want answers, not a craft project."
- 4"×4" patch works anywhere air moves
- Test whole home via HVAC filter
- Test a single room (basement, bedroom, nursery)
- Test your air purifier — is it actually working?
- Test DIY setups (box fans, Corsi-Rosenthal boxes)
- 7-day sampling period
- Results in 5–7 days

FilterCut
For the hands-on homeowner.
"That dusty filter is about to become useful."
- Uses your existing used filter (30+ days old)
- Heavy-duty filter shears included (cuts wire mesh)
- Nitrile gloves included
- Months of accumulated data in one sample
- Whole home analysis from one cut
- Results in 5–7 days
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Surface Swab
Swab it. Send it. Stop guessing.
"Is that mold or a committed dust bunny?"
- Swab any suspicious surface
- Walls, ceilings, basements, bathrooms
- Window sills, under sinks, behind furniture
- Identifies exact mold species
- Results in 3–5 days
Real Lab. Real Scientists.
Analysis performed to the highest standards
Your samples go to an actual laboratory. Actual scientists look at them. Not just a guy named Steve with a magnifying glass. We use AI-assisted microscopy for lab-grade accuracy and identify 36+ mold species.

Real Simple.
Reports you can actually understand
Written in English. Not scientist. Your report includes what was found, what it means, and what to do next. Results in spores per cubic meter — the same standard used by the EPA. Share with doctors, contractors, or that know-it-all neighbor.
Why Test With Us?
Because guessing is exhausting and WebMD already has you worried.
No Appointments
Test on your schedule. In your pajamas. We don't judge.
Your house, your rulesNo Strangers
Nobody comes to your house. Nobody sees your dishes in the sink.
Your secret's safeTest Your Purifier
Spent $400 on an air purifier? Find out if it's actually working.
Trust but verifyAI-Powered Analysis
AI-assisted microscopy. Lab-grade accuracy. Fancy robots.
Science, but coolSame Price US or Canada
$69 USD or CAD. No exchange rate games. No surprises.
Fair is fairReports You Can Read
Written in English. Not scientist. Share with doctors or contractors.
Finally, proofCommon Questions
Everything you wanted to know but were afraid to ask.
What's the difference between AirPatch and FilterCut?
Can I test if my air purifier is actually working?
What will the test show me?
How long does it take to get results?
Why is it the same price in US and Canada?
What if my results show a problem?
What's Bad Air Really Costing You?
Most homeowners don't realize poor air quality silently drains thousands through energy waste, health costs, and reduced home value.
Take our 2-minute quiz and find out your 5-year cost of not testing.
Stop Guessing. Start Knowing.
Your air. Your answers. Your call. (But seriously, find out what you're breathing.)
Shop Now — $69