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Why it’s great
This is a straightforward, large-room purifier that does the basics well. Air passes through a washable pre-filter, a carbon filter for odors, a True HEPA filter and an optional ionizing stage, while an auto mode and a color-changing light handle the day-to-day work. Buyers describe a very quiet sleep mode and filter swaps that take minutes. It’s not silent at full speed and its sensor is simple, but the mix of coverage, easy upkeep and a modest price makes it a safe pick for a kitchen-adjacent room.
Bottom line
A quiet-on-low, easy-to-maintain purifier for odors and smoke in open living spaces, as long as you can live with a loud top speed.
Best for
- Open-plan kitchens and living areas where cooking smells drift into the rest of the room
- Pet owners dealing with litter box odor, dander and hair, as several buyers describe
- Households that face seasonal wildfire smoke and want a purifier that can run on a steady speed
- Light sleepers who want a unit that dims its lights and slows its fan in a dark room
- Buyers who want filters they can replace in minutes, with a washable pre-filter between swaps
Who should skip this
- Anyone hoping it will replace a range hood. EPA says source control and ventilation are the most effective ways to improve indoor air, with filtration as a supplement.
- Noise-sensitive buyers who plan to run it on the top speeds. Independent testing found it louder than several comparable purifiers at full speed.
- People who want a purifier that tracks dust or pollen. The sensor responds mainly to gases and odors, so the color light isn’t a particle meter.
- Buyers who want a timer or child lock, which independent testing found missing.
Key features
- Four-stage filtration: a washable fine mesh pre-filter, an activated carbon odor filter, a True HEPA filter and a PlasmaWave ionizing stage (a feature that releases charged ions so particles clump and settle, and that you can turn off). The listing says the HEPA filter captures 99.99 percent of particles down to 0.01 microns.
- Coverage: the listing cites an AHAM Verifide rating for rooms up to 392 square feet. That rating rests on CADR (clean air delivery rate, the amount of filtered air a purifier delivers each minute, which decides how large a room it can handle), so match it to your own floor area.
- Sensors and auto mode: a built-in sensor adjusts fan speed automatically and drives a blue, amber and red light. Independent testing found it is a VOC sensor (volatile organic compounds, the gases from cooking, cleaners and paints), so it reacts to odors more than dust.
- Sleep mode: the listing says the unit slows its fan and darkens its lights automatically when the room is dark.
- App control: the Winix Smart app handles speed, scheduling and a filter life indicator, according to the listing and buyers.
- Size and power: about 8.3 by 13.6 by 22.7 inches, roughly 13.3 pounds, and 50 watts per the spec table. Air exits through the top.
- Finishes: black, polished charcoal gray and white, with a Dove White option also shown.
Performance and usability
- Odors and smoke are the strength. Buyers report a litter box smell gone in two days, wildfire smoke kept outside and cooking smells cleared. One long-term owner measured fine particles falling sharply after running it on high during heavy smoke.
- Testing backs the top-speed performance. HouseFresh measured top-speed cleaning in line with similar mid-size purifiers and found it suited to rooms of roughly 370 square feet, a bit under the 392 figure.
- Quiet on low, louder on top. HouseFresh measured about 40 decibels on the lowest regular speed and about 65 on the highest. Buyers describe the low settings as barely audible and the turbo as noticeable.
- The sensor is simple. Buyers say the light reacts to sprays, popcorn and mouthwash, and one notes the amber and red states are hard to tell apart. It helps in auto mode, but it won’t show dust.
- Upkeep is easy. A magnetic front panel opens the filter bay, and one owner got about a year from the first set before the check filter light came on. Buyers note third-party filters vary, and one app owner found it laggy.
Real world use cases
- Clearing cooking smells in an open kitchen and living room after frying or searing
- Controlling litter box and pet odor in a laundry room or mudroom off the kitchen
- Running on a steady speed during wildfire smoke season
- Using sleep mode overnight in a bedroom or home office
- Switching to the top speed while vacuuming or dusting, a tip one buyer gives
Pros & cons
| Pros | Cons |
|---|---|
| Strong odor and smoke control from a carbon and True HEPA combination | Top speeds are loud, according to independent testing |
| Quiet low and sleep settings, with lights that dim in the dark | Sensor responds mainly to gases, so it isn’t a dust or pollen monitor |
| Easy filter swaps and a washable pre-filter | |
| Auto mode, app control and scheduling | |
| Four finishes and a two-year manufacturer warranty |
Trust signals
Independent coverage of this exact unit is limited but not absent. HouseFresh lab-tested the Winix 5520 and found solid top-speed cleaning, while noting the louder top speed, a gas-only sensor and a basic app. What else is available to go on is the manufacturer’s warranty and certifications, Amazon’s return policy and the consistent themes in verified buyer feedback.
Winix’s product page lists a 2-year warranty, an AHAM Verifide rating and UL certification. It is sold and shipped by Amazon, with Amazon’s voluntary 30-day return guarantee listed on the page. Buyers most often praise odor removal, quiet operation on low and easy filter changes.
Scorecard
| Category | Rating | Notes |
|---|---|---|
| Aesthetic & Form Factor | High | A clean, low-profile tower in four finishes that buyers say blends into a room. |
| Space Efficiency | Medium | About 22.7 inches tall with a modest footprint, but not something for a nightstand. |
| Performance & Speed | High | Top-speed cleaning matched comparable purifiers in independent testing. |
| Ease of Cleaning & Maintenance | High | Washable pre-filter and simple, magnetic-panel filter swaps about once a year. |
| Quietness | Medium | Quiet on low and in sleep mode, but loud at the top speeds. |
| Build Quality & Durability | Medium | Light plastic construction that buyers call sturdy and stable. |
| Ease of Setup / Learning Curve | High | Buyers describe a two-minute setup, auto mode and a simple app. |
| Eco & Sustainability | Medium | 50 watts per the spec table, with annual filter replacements. |
| Value / Price-to-Performance Ratio | High | Buyers cite strong value, though the near-identical 5510 can cost less. |
| Portability | Medium | Light enough to move between rooms at about 13 pounds, but it isn’t designed for travel. |
What is in the box
- 1 Winix 5520 air purifier
- 1 washable fine mesh pre-filter
- 1 activated carbon odor control filter
- 1 True HEPA filter
- Power cord and user manual
Final verdict
The Winix 5520 is a well-rounded, value-tier purifier for odors, smoke and dust in an open kitchen or living area, with a quiet low setting and simple filter swaps. Expect a loud top speed and a sensor that reacts to gases more than dust. Treat it as a supplement to good ventilation, not a replacement for a range hood.
What to know before buying
A portable air purifier cleans the air in one room, so match it to the room, not the house. Kitchens also need ventilation at the source, because a purifier supplements a range hood rather than replacing it.
Q: What Matters in an Air Purifier
A: Check room size, noise and filter upkeep. AHAM Verifide suggests a smoke CADR of at least two-thirds of your room’s floor area, and taller ceilings need more. Higher fan speeds clean faster but get louder. Filters need replacing about once a year, so budget for refills before you commit.
Q: How It Compares to Alternatives
A: A range hood captures smoke and grease at the stove, while a purifier cleans what spreads into the room, so the two work best together. Our range hood reviews cover options for the stove. HouseFresh calls the Winix 5510 a nearly identical, cheaper alternative, so compare the two before you buy.
Q: Who This Category Is Best For
A: People with open-plan kitchens and living spaces, pets, allergies or seasonal wildfire smoke who want continuous, low-effort filtration in a main room.
Q: Who It’s Not Ideal For
A: Anyone expecting a purifier to replace a range hood or stop smoke at the source, and light sleepers who would run it on top speed every night.
Q: What to Check Before You Buy
A: Confirm the model number on the box matches the 5520 you ordered and that you picked the finish you want, since the color selector includes versions sold under related model numbers. Match the room size to your own floor area, noting that the 392 square foot rating and the 1,882 square foot figure describe different cleaning rates. Check the noise rating, filter model and Wi-Fi band in the manual, and confirm the return window.
Editor’s Summary for Winix 5520 Air Purifier
Winix 5520 Air Purifier (True HEPA, carbon filter, washable pre-filter, auto mode, PlasmaWave, Winix Smart app), listed in black, polished charcoal gray and white
The Winix 5520 air purifier pairs a True HEPA filter, a carbon filter and a washable pre-filter with auto mode, an air quality light and app control.
4.4
Pros
- Strong odor and smoke control from a carbon and True HEPA combination.
- Quiet low and sleep settings, with lights that dim in the dark.
- Easy filter swaps and a washable pre-filter.
- Auto mode, app control and scheduling.
- Four finishes and a two-year manufacturer warranty.
Cons
- Top speeds are loud.
- Sensor responds mainly to gases, so it isn't a dust or pollen monitor.
