Mold spores are
in your air.
We fix that.
The Windmill Air Purifier Max captures 99.95% of common household mold spores in 60 minutes. Tested at an independent, AHAM-accredited facility. Not a claim — a result.
Most people have no idea what they're breathing.
The EPA estimates 70% of US homes have mold growing somewhere. Mold spores are invisible — but our lungs know they're there.
Americans experience mold-related respiratory symptoms every year — from congestion and coughing to serious asthma flares.
of US homes contain measurable mold, according to the EPA. Most homeowners never know it's there.
Mold spores are a leading cause of asthma flare-ups, chronic congestion, and morning headaches in enclosed spaces.
Mold spores range from 2–20 microns. Standard filters miss them entirely. HEPA 13 captures 99.95% of particles at 0.3 microns — far smaller than any mold spore.
Independently verified. Real homes. Real mold strains. Real results.
We didn't guess. We tested.
99.95% isn't a marketing number. It's what happened when we put the Max in a room full of Aspergillus mold spores and measured what was left after 60 minutes.
Tested against Aspergillus — the most common household mold species — in a standardized 1,950 sq ft chamber.
- Tested at an independent, AHAM-accredited lab — not in-house. Results are verifiable and reproducible.
- Tested against Aspergillus — the most common mold species found in US homes.
- HEPA 13 captures 99.95% of particles at 0.3 microns — smaller than any common household mold spore.
- Activated carbon layer eliminates musty mold odors — so air doesn't just measure clean, it smells clean too.
- Running 24/7 on auto mode means it continuously clears your air — not just when you remember to turn it on.
Three stages. One clean room.
Large particles — dust, pet dander, hair — are captured first to protect and extend the deeper filters.
First passMedical-grade HEPA 13 traps 99.95% of particles at 0.3 microns — far smaller than any mold spore, which starts at 2 microns.
Core stageA premium carbon layer absorbs musty mold odors and VOCs. Air doesn't just test clean — it smells clean.
Final stageIn 1,950 sq ft, the Max runs a full air cycle every 60 minutes — automatically, quietly, continuously.
60 minutesBuilt for real homes.
Most purifiers check a spec sheet. The Max was designed to work in real homes — with real mold, real families, real messy lives.
At 16 dB, sleep mode is quieter than a library. We'll forget it's on — which is exactly the point.
16 dBBuilt-in sensors detect rising particle counts and ramp up quietly before we notice a thing. Then settle back down.
Always onLarge open-plan rooms, living areas, studios. One Max handles spaces others struggle with at full speed.
AHAM VerifiedThe Max tracks actual usage and tells us when to swap — so we're never running on a spent filter without knowing.
Smart alertsWe're confident enough to show you.
What our neighbors are saying.
"We had mold in our basement that kept triggering my daughter's asthma. Two weeks with the Max running 24/7, her morning coughing stopped. Didn't expect it to work this well."
"Skeptical about the 99.95% claim — it felt like marketing. My air quality monitor proved me wrong. My allergist confirmed my mold spore count dropped significantly."
"Quiet enough for the bedroom. The musty smell from our old apartment is completely gone. We wake up feeling actually rested for the first time in years."
Everything you need to know.
Stop breathing mold.
Start tonight.
Lab-tested. Independently verified. 30-day returns, no fuss.