AirPatch
Stick. Wait. Know.
A 4"×4" sampling patch that works anywhere air moves. Leave it for 7 days, mail it back, and get a full lab analysis of what's floating in your air.
Whole home. Single room. Air purifier. You pick the target.

MOST VERSATILEAirPatch Kit
Stick it. Wait. Mail it. Done.
"I want answers, not a craft project."
The most versatile air quality test we offer. The patch adheres to any surface where air moves — your HVAC filter, a vent, a room corner, or the output of your air purifier. Leave it for 7 days and mail it back. We analyze 182+ particle types and send you a plain-English report.
- 4"×4" adhesive sampling patch
- Works anywhere air moves — vents, filters, purifiers
- 7-day sampling period captures a full week of air
- 182+ particle types analyzed
- 36+ mold species, allergens, pollen, dander, PM2.5
- Prepaid return shipping included
- Results in 5–7 business days
- Report in plain English — not scientist
- Digital report via TYW Client Portal
Where Would You Patch?
Anywhere air moves. The options are wide open.
Whole Home via HVAC
Stick the patch on your return air filter. Your HVAC system becomes your air sampler — capturing particles from every room in the house over 7 days.
The most complete whole-home picture.Single Room Testing
Worried about the basement? The baby's room? That one bedroom that always smells a bit... off? Stick the patch near a vent or air source and test just that space.
Pinpoint the problem room.Air Purifier Verification
Paid $300–$800 for an air purifier? Stick an AirPatch on the output side. If the air coming out is measurably cleaner, money well spent. If not — now you know.
Trust but verify.New Home / Moving In
Before you unpack a single box, know what you're moving into. Previous owners, pets, moisture — your filter won't lie.
Know before you unpack.DIY Air Setups
Running a Corsi-Rosenthal box fan filter? A DIY air purifier? Curious if it actually does anything? Patch the output and find out.
Validate your build.Before & After Testing
Test before remediation or filter replacement. Test again after. See whether the work made a measurable difference.
Proof that the fix worked.
How It Works
Four steps. No PhD required.
Order
Pick your kit. Ships to your door.
30 seconds to order.
Attach
Peel backing. Stick to filter, vent, or purifier.
Anywhere air moves.
Wait 7 Days
Leave it for a full week. Your air does the work.
Then peel it off.
Mail & Wait
Drop in any mailbox. Results in 5–7 days.
In English. Not scientist.
AirPatch vs. FilterCut
Same lab, same science. Different starting points. Here's how to pick.
Choose AirPatch if…
- You want to test a specific room, not the whole house
- Your filter is new or less than 30 days old
- You want to test your air purifier's output
- You want the freshest possible snapshot of current air
- You're testing a DIY setup (box fan, Corsi-Rosenthal)
Choose FilterCut if…
- Your filter is 30+ days old and you want months of data
- You want the richest whole-home historical picture
- You already have a used filter sitting around
- You're doing a baseline test of a home you've lived in
- You want accumulated data, not a 7-day snapshot
Not sure? Both test the same 182+ particle types. You can't go wrong with either.
Stop Guessing. Start Knowing.
Stick it. Wait seven days. Mail it back. Get a complete analysis of what's floating in your air. $69. No appointments. No strangers.