If you want better air quality sensor accuracy
Choose Shark NeverChange Air Purifier, HP152. It scores 4.9 vs 2.4 for air quality sensor accuracy, with a 4.1 overall score.
Winix 5520 Air Purifier Review
Bottom Line
Choose the Winix 5520 for strong mid-room dust, smoke and odor cleaning with app control. Skip it if you need quiet turbo use, flawless sensors, or a polished smart-home experience.
Best for
Best for people who want a high-value purifier for bedrooms, offices, and medium rooms where dust, smoke, pet hair, odors, or allergies are the main problem. It also suits users who appreciate auto mode and scheduling but do not need a premium app experience.
Not for
Not ideal for buyers who expect quiet performance on turbo, need reliable modern Wi-Fi integration, or want detailed sensor readings they can fully trust. Large open-plan spaces may need more than one unit.
Verdict
The Winix 5520 earns a broadly positive consensus because expert testing and customer reviews repeatedly point to effective air cleaning, especially for dust, smoke, odors, pet hair and allergy triggers. Its layered filtration, real carbon filter, easy maintenance, useful auto mode, and strong value come up again and again. The tradeoff is that its best cleaning often requires higher fan speeds, where noise becomes noticeable, and the smart side is uneven: some users like the app and scheduling, while others complain about Wi-Fi limits, account friction, sensor behavior, and bright display lights. It is best understood as a capable mid-sized purifier with useful smart extras, not a silent or perfectly refined connected appliance.
Feature Scorecards
Summary
53 reviewed features-
Very positive 4.5-5.013 (25%)
-
Positive 3.5-4.431 (58%)
-
Neutral 2.5-3.43 (6%)
-
Negative 1.5-2.46 (11%)
Pros
-
Review evidence for odor reduction is mostly positive, based on opinionated comments from 25 source review(s).
-
Review evidence for ease of use is mostly positive, based on opinionated comments from 11 source review(s).
-
Review evidence for overall satisfaction is mostly positive, based on opinionated comments from 26 source review(s).
-
Review evidence for pet dander removal is mostly positive, based on opinionated comments from 34 source review(s).
-
Review evidence for value for money is mostly positive, based on opinionated comments from 13 source review(s).
-
Review evidence for dust removal is mostly positive, based on opinionated comments from 32 source review(s).
Cons
-
Review evidence for app connectivity is mostly negative, based on opinionated comments from 29 source review(s).
-
Review evidence for air quality sensor accuracy is mostly negative, based on opinionated comments from 13 source review(s).
-
Review evidence for Wi-Fi reliability is mostly negative, based on opinionated comments from 8 source review(s).
-
Documentation quality is a gap theme, with reviewers saying the instructions do not explain controls or lights well enough.
-
Review evidence for display readability is mostly negative, based on opinionated comments from 1 source review(s).
-
Review evidence for VOC sensor accuracy is mostly negative, based on opinionated comments from 1 source review(s).
Compared With Category Average
Compared with other Air Purifiers, this product is above average in filter availability, voice assistant compatibility, child lock, near average in dust removal, noise level, below average in display readability, air quality sensor accuracy, documentation quality.
Comparison summary
53 compared features-
Above average 0.4+ pts higher17 (32%)
-
Same as average within 0.3 pts21 (40%)
-
Below average 0.4+ pts lower15 (28%)
Largest category differences
| Attribute | This product | Category average | Difference |
|---|---|---|---|
| display readability | 2.0 | 3.9 | -1.9 |
| air quality sensor accuracy | 2.4 | 3.7 | -1.4 |
| documentation quality | 2.0 | 3.4 | -1.4 |
| sleep mode | 2.8 | 4.2 | -1.4 |
| app connectivity | 2.4 | 3.2 | -0.8 |
| Wi-Fi reliability | 2.3 | 3.3 | -1.0 |
| filter availability | 4.5 | 3.5 | +1.0 |
| VOC sensor accuracy | 2.0 | 3.0 | -1.0 |
Consider This Instead
If you want better smoke removal
Choose Blueair Blue Pure 411i Max. It scores 4.8 vs 4.2 for smoke removal, with a 4.1 overall score.
If you want better overall satisfaction
Choose Levoit Core 600S. It scores 4.8 vs 4.2 for overall satisfaction, with a 4.3 overall score.
If you want better allergen reduction
Choose Levoit EverestAir. It scores 4.8 vs 4.0 for allergen reduction, with a 4.5 overall score.
Compared in Reviews
Products reviewers directly compared with this model, grouped into quick takeaways.
- Similar: top-speed particle removal The 5520 matched the Levoit Vital 200S in top-speed performance.
- Better: quiet-speed filtration and running cost The 5520 is harder to recommend than the 5510 because the 5510 performs better at quiet speeds and costs less.
BlueAir
- Worse: odor reduction The reviewer says the Winix reduced foul odors that two BlueAir units did not.
FAQ
Is the Winix 5520 good for dust?
Yes. Expert and customer evidence repeatedly reports less visible dust, cleaner rooms, and dust captured on the pre-filter or front screen.
Does it help with odors and smoke?
Yes. Reviewers describe strong results with cooking odors, pet smells, smoke smell, wildfire smoke, and wood-stove smoke, helped by the carbon filter.
Is it quiet enough for a bedroom?
Often yes on sleep, low, or moderate settings. The main complaint is that turbo or high speed can sound loud, and some display lights bother sensitive sleepers.
How good is the app?
The app is useful for scheduling and remote control, but evidence is mixed. Some users found setup easy, while others criticized delays, login requirements, Wi-Fi limits, or privacy concerns.
Does auto mode work well?
Many reviews say auto mode responds well to air quality changes, but others found sensor behavior unclear or disliked auto sleep mode in dim rooms.
Are replacement filters expensive?
Most customer evidence describes filter costs as reasonable or affordable, though heavy dust, pets, or odors may shorten real-world filter life.
Sample Expert Reviews We Analyzed
These are a few of the reviews included in our analysis.
Video Reviews
YouTube - JessieUnboxed
- Review score
- 3.8
Article Reviews
Top Air Purifiers to Consider
Choose the H7124 if you want a quiet smart purifier for odors, dust, pets, and app control. Skip it if you need foolproof Wi-Fi, wall-facing intake, UV light, or strong...
Pros: particle removal effectiveness, pollen removal
Cons: UV-C light effectiveness, air dryness
Best for quiet, simple cleaning in bedrooms or apartments. Skip it if you need verified large-room CADR value, app control, or guaranteed neighbor-smoke removal.
Pros: particle removal effectiveness, dust removal
Cons: CADR rating, air changes per hour
Best for strong room cleaning, allergy relief, odor control, and simple operation. Skip it if high filter costs, a larger footprint, or possible nighttime fan noise would bother you.
Pros: particle removal effectiveness, HEPA filtration
Cons: customer support, warranty coverage
Choose this if you want strong odor, dust, smoke, and pet-air cleanup with washable filters. Skip it if turbo noise, Wi-Fi setup, or a high upfront price will bother you.
Pros: filter replacement cost, allergen reduction
Cons: Wi-Fi reliability