Air purifier/whole-room
Molekule Air Pro
A design-forward purifier combining a PECO-HEPA filter with light-activated PECO, rated for 1000 sq ft; we found no AHAM-verified CADR as of 2026-06-06. Wirecutter's January 2023 test found it removes fine smoke particles effectively, though top speed measured 71 dB.
- Rubric
- air-v1.0
- Confidence
- Verified
Bottom line
In our scoring the Molekule Air Pro earns 2.4/10, a weak result, and it stands out on safety (8.0/10). On the data, it uses a True HEPA filter but its CADR is not AHAM-verified as of 2026-06-06. Filters run about $350 a year (~$2750 over five years with the device), on the expensive end to run. Our main catch: claimed room size exceeds what the unit's AHAM CADR can deliver.
Flags
- · Claimed room size exceeds what the unit's AHAM CADR can deliver.
Flags indicate missing certifications or data gaps under our rubric, not a confirmed finding that a product fails to perform.
Where to buy
No buy link on this one: it scored Limited under our rubric, and we only link products we would shortlist ourselves.
Total cost of ownership
Checked 139 days ago - re-check soon- Annual filters
- $350/yr
- Device
- $1000
- 5-year total
- $2750
Certifications
- CARB Zero Ozoneozone
Filters only protect you on their swap schedule. Get an email reminder when this one is due - one note around swap time, nothing else.
Overview
The Molekule Air Pro is a whole-house air purifier built around a True HEPA filter. Its performance is not published as an AHAM-verified CADR as of 2026-06-06, and it uses no ionizer and no ozone-generating stage. Filters run about $350 per year, on the expensive end to run.
By the numbers
- Manufacturer room claim
- 1000 sq ft
- Filter
- True HEPA
- Ozone / ionizer
- no ionizer and no ozone-generating stage
- Noise (low)
- 30 dBA
- Annual filter cost
- $350/yr
- 5-year cost of ownership
- $2750 (device + filters)
- Certifications
- CARB Zero Ozone
Strengths
- + Safety: 8.0/10
Watch-outs
- - Verified Performance: 0.0/10
- - Total Cost of Ownership: 0.0/10
- - Certification: 2.0/10
- - Claimed room size exceeds what the unit's AHAM CADR can deliver.
Who it is for
- · Large living rooms and open-plan spaces
- · Anyone sensitive to ozone, or with asthma or allergies
- · Light sleepers - it is near-silent on its lowest setting
Who should skip it
- · Buyers who want independently verified (AHAM) performance
- · Buyers focused on low running cost - filters are pricey
What to know before buying
- · The Air Pro uses a PECO-HEPA Tri-Power filter that Molekule recommends replacing about every six months.
- · The 2019 and 2020 advertising reviews concerned the original Molekule (the MH1, now sold as the Molekule Air), not the Air Pro. The BBB National Programs' National Advertising Division recommended Molekule discontinue several performance claims for that model after a challenge by Dyson, and a 2020 National Advertising Review Board panel found some of the appealed claims supported while recommending Molekule discontinue or modify others.
- · Wirecutter's poor 2019 result and Consumer Reports' low overall score were for the original Molekule Air, not the Air Pro. Wirecutter tested the Air Pro in January 2023 and found it removed fine smoke particles effectively, but measured it at 71 dB on its highest setting.
Sources
- · Wirecutter - The Best Air Purifier (Molekule section; archived snapshot, Dec 2023)
- · BBB National Programs - NAD decision summary on Molekule MH1 (Oct 25, 2019)
- · NARB panel #263 on Molekule MH1 (Apr 2020, summary as published by Ithaca College Intercom)
- · Consumer Reports - Molekule Air (original model, discontinued)
How it scored
Verified Performance
0.0/10 · 30%AHAM CADR, true sealed HEPA, air changes per hour, room-size match (CADR basis).
- ·CADR not AHAM-verified B0 cfm (manufacturer claim) - CADR is a manufacturer figure; we found no AHAM Verifide listing as of 2026-06-06.
Total Cost of Ownership
0.0/10 · 25%Computed annual filter cost vs the room-size class median. The number nobody surfaces.
- 0Annual filter cost vs class median A$349.98/yr (above class median (expensive to run)) - Computed annual filter cost scored against the room-size class median.
Certification
2.0/10 · 15%AHAM Verifide, Energy Star, CARB, published lab efficiency.
- +2CARB certified ACARB compliant - Meets California's air-cleaning-device ozone-emission rules.
Safety
8.0/10 · 15%Ozone and ionizer behavior. Ozone generators hard-fail.
- +8No ozone-generating technology Ano ionizer / no ozone - No ionizer, plasma, or ozone-emitting stage.
Practical Fit
6.0/10 · 15%Noise, filter-change indicator, energy draw. Smart features are neutral.
- +4Quiet at low speed B30 dBA low - Runs at 50 dBA or quieter on its lowest useful speed.
- +2Filter-change indicator Bindicator present - Tells you when the filter actually needs replacing.
- ·Smart features (neutral) Capp / auto mode - App control and auto mode are neither rewarded nor penalized.
FAQ
- Is the Molekule Air Pro's CADR AHAM-verified, and does it emit ozone?
- We found no AHAM-verified CADR for this model as of 2026-06-06, so its performance is a manufacturer figure. It has no ionizer and no ozone-generating stage.
- How often do I replace the filter?
- The Air Pro uses a single PECO-HEPA Tri-Power filter that Molekule recommends replacing about every six months depending on use, available one-off or via subscription.
- Were Molekule's effectiveness claims ever challenged?
- Yes, for the original Molekule model (the MH1). In October 2019 the National Advertising Division recommended Molekule discontinue several pollution-elimination, large-room performance and HEPA-comparison claims, and in 2020 a National Advertising Review Board panel found some of the appealed claims supported while recommending Molekule discontinue or modify others. NAD notes that such a recommendation is not a finding of wrongdoing. Those cases did not cover the Air Pro.
- Has the Air Pro itself been tested?
- Wirecutter tested the Air Pro in January 2023 and found it removed fine smoke particles effectively, dropping smoke levels by 99.9% in 30 minutes on its highest setting, but that setting measured 71 dB, which Wirecutter called far too loud for real-world use. The earlier poor results from Wirecutter and Consumer Reports were for the original Molekule Air.
Compared head-to-head
Related guides
This score is our opinion under our published rubric, not a statement of objective fact or a lab test of this product. We score what third-party certifications prove; absence of a certification means we found no verification as of 2026-06-06, not that a product fails to perform. Last reviewed 2026-06-06. Scored under air-v1.0. Prices were last checked 139 days ago; the freshness chip above the cost panel shows the current state. See the methodology for how each rule fires.