Winix

Winix Zero Pro

A from Winix, with True HEPA H13 filtration, rated for rooms up to 1292 sq ft.

Who this is for:Shoppers looking for a purifier suited to large living rooms and open-plan spaces. If odors, pet smells, or smoke gases are a concern, this model includes activated carbon.

AHAM VerifideAbout certifications

Key specs

New to these numbers? Read What is CADR? and Decibels, translated

Room coverageiThe largest room, in square feet, this purifier can effectively clean — assuming standard 8-foot ceilings and 4–5 air changes per hour.Room size guide →1292 sq ft

Noise rangeiDecibels (dB) measure loudness on a scale where every +10 dB sounds roughly twice as loud. 20 dB is a whisper, 40 dB a quiet library, 60 dB normal conversation. For bedrooms, look for under 30 dB on the lowest setting.Noise guide →28–55 dB

Who the Winix Zero Pro is for

Specs only matter in context. Here's where the Winix Zero Pro genuinely fits — and the trade-offs worth knowing before you buy. If you're deciding between this model and similar options, focus on the fit cards below: they highlight the specific use cases where this purifier shines and the situations where it falls short.

Good fitBedrooms and light sleepersAt 28 dB on its lowest setting, the Winix Zero Pro clears the 30 dB bedroom bar — roughly a whisper. Just know high speed reaches 55 dB, so let a lower setting do the overnight work.
Good fitOdors, pets, and smokeAn activated carbon stage traps the gases a particle filter can't — cooking smells, litter-box odor, VOCs, and wildfire smoke gases.
Good fitAllergy and asthma householdsA True HEPA filter captures 99.97% of particles at 0.3 microns — pollen, dander, dust mite debris, and most smoke. Run it continuously for real symptom relief.
Good fitSet-and-forget operationListed features include Dual particle/gas sensors, auto mode — handy for letting the purifier manage itself, though none of it replaces CADR headroom.
Keep in mindHigh speed reaches 55 dBThat's conversation volume. CADR is measured at max speed, so on quieter settings the effective CADR drops — buy the headroom and run it on medium.

What owners say

1 recommendation

4.0 out of 5 starsr/AirPurifiers
“Winix is fine. More efficient than the mighty. I’d recommend the zero pro, personally, since it has a carbon grid.”
Read the thread

Compare with similar models

These alternatives share key traits with the Winix Zero Pro — same brand family or similar room coverage. Compare their scores, owner sentiment, and specs side by side to see which fits your specific needs better.

Common questions about the Winix Zero Pro

Quick answers to the questions shoppers most often ask before buying. If your question isn't covered here, check the full specifications below or compare against similar models above.

What size room can the Winix Zero Pro handle?It's rated for rooms up to 1292 sq ft.
Is the Winix Zero Pro quiet enough for a bedroom?Yes — 28 dB on the lowest setting is under the 30 dB threshold most sleepers need, roughly a whisper. On high it reaches 55 dB, so size it to run on low or medium overnight.
Can the Winix Zero Pro handle odors and smoke?Yes — its activated carbon stage traps odor and VOC gases while the True HEPA H13 filter handles the particles, which is the combination smoke and pet households need.

Full specifications

cadr m3hiClean Air Delivery Rate expressed in cubic meters per hour — the metric used outside the US.CADR guide →: 470
dimensions: 16.3 x 9.6 x 23.6 in
weight lbs: 18.7
filter typeiThe particle filter grade. True HEPA captures 99.97% of particles at 0.3 microns; 'HEPA-type' has no standardized efficiency.Filter guide →: True HEPA H13
model numberiThe manufacturer's exact model identifier — handy when comparing listings across retailers.: AZPU370-IWE
noise db maxiThe loudest fan setting, in decibels. 60 dB is normal conversation; above that you'll hear it across the room.Noise guide →: 55
noise db miniThe quietest fan setting, in decibels. 20 dB is a whisper, 40 dB a quiet library — for bedrooms, look for under 30 dB here.Noise guide →: 28
aham verifiediAHAM Verifide means CADR and room-size claims were verified in an independent lab, not self-reported.Certifications guide →: True
smart featuresiExtras like air quality sensors, auto mode, app control, and sleep modes. Nice to have — they don't clean the air themselves.Smart features guide →: Dual particle/gas sensors, auto mode
room coverage sqftiThe largest room, in square feet, this purifier can effectively clean — assuming standard 8-foot ceilings and 4–5 air changes per hour.Room size guide →: 1292
has activated carboniActivated carbon traps gases, odors, and VOCs that HEPA filters can't catch — essential for smoke, cooking smells, and pet odor.Filter guide →: True