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Winix 5510 review
$200–250Research-based· Last verified 2026-10-29
Verdict
The app-connected successor to the Winix 5500-2, rated for 392 sq ft by AHAM. It packs studio-sized cleaning into the slimmest full-size body here, but it's loud at top speed and Winix publishes few specs or warranty terms.
Best for: Studios around 400 sq ft with a narrow spot by a wall or desk · Buyers who want the 5500-2's performance with an app
Trust Score: 76/100 (Good)
Confidence: Low (2 independent sources)
Reviewed · Methodology v1.0 · how we score
| Pillar | Score |
|---|---|
| Independent evidence | 25/30 |
| Safety & compliance | 16/20 |
| Specs & claims transparency | 9/20 |
| Brand accountability | 15/15 |
| Warranty & support | 11/15 |
Why this score: Two independent hands-on reviews agree it cleans a studio-sized room quickly, and their measurements match the AHAM rating. Winix's own page lists no dimensions, weight or noise figures and no warranty terms beyond '2-year warranty'. Its CARB certification is on the state's public list, and there are no CPSC recalls for the brand.
Not hands-on tested. This score is based on public, verifiable evidence. Commissions never change a score.
Small-space fit: 81/100
Air purifiers fit rubric v1.0. Separate from the Trust Score: it rates how well the product does its job in a small home.
| Criterion | Weight | Score |
|---|---|---|
| Room coverage for a studio | 40% | 9/10 |
| Quiet cleaning | 35% | 7/10 |
| Floor footprint | 25% | 8/10 |
Pros
- AHAM room rating of 392 sq ft; HouseFresh measured 249 cfm (PM1)
- Slim body: about 13.6 × 8.3 in on the floor
- PlasmaWave ionizer can be switched off
Cons
- Loud at top speed: 67.2 dBA at 3 ft in HouseFresh's tests
- Auto mode relies on an odor sensor and may ignore dust and pollen (Air Purifier First)
- New Filter Q set doesn't fit the older 5500-2
Key specs
| Rated CADR, smoke (cfm) | 253 |
| Footprint (W × D, in) | 13.6 × 8.3 |
| Height (in) | 22.2 |
| Weight (lb) | 13.3 |
| Noise at 3 ft, sleep to max (dBA) | 35.2–67.2 (HouseFresh) |
| Filter life (months) | 12 |
| Ionizer | PlasmaWave, can be turned off |
| App | Yes |
Sources behind the Trust Score
- HouseFresh: Winix 5510 review (E1): Danny Ashton, Oct 2026, bought with own money. PM1 CADR about 249 cfm at top, 125 under 45 dBA; test room cleared in 24 min; 35.2–67.2 dBA at 3 ft; filters about $80 a year. Accessed Oct 27, 2026.
- Air Purifier First: Winix 5510 review (E1): Milan Antonic, May 2025, used in a living room and office (site buys its units). PM2.5 104.9 → 4.7 µg/m³ in 60 min in a 320 sq ft room; 40.2–65.7 dBA; measured 13.6 × 8.3 × 22.2 in, 13.3 lb; odor-only auto sensor. Accessed Oct 27, 2026.
- CPSC Recalls API, title search 'Winix' since 2021-10-27 (S1): No recalls returned. Accessed Oct 27, 2026.
- California Air Resources Board: List of CARB-certified air cleaning devices (S2): WINIX 5510, electronic, notified 2024-10-03, EO G-24-234. Checked in the list's search box. Accessed Oct 29, 2026.
- Winix America: 5510 product page (P2): AHAM Verifide room size 392 sq ft; ozone 0.22 ppbv (8-hr TWA, 30 m³ chamber); 2-year warranty. No CADR figures, dimensions, weight, noise or power on the page. Accessed Oct 27, 2026.
- Winix America: company news page footer (B1): Winix America Inc., 3000 Lakeside Drive, Suite 305S, Bannockburn, IL 60015; (877) 699-4649. Accessed Oct 27, 2026.
- Justia mirror of USPTO records: WINIX (reg. 5797677) (B2): Registered July 9, 2019 for household air cleaners (class 11); first use in commerce Oct 1, 2002. Accessed Oct 27, 2026.
- Winix America: warranty request page (W2): A request form and phone number only; no published warranty length, coverage or exclusions. Air Purifier First reports 1 year, extended to 2 on registration. Accessed Oct 27, 2026.
- Winix America: company news page with filter store (W3): Replacement filters sold by Winix; phone support 8 am–6 pm CST. Accessed Oct 27, 2026.
Sources behind the fit rating
- Room coverage for a studio: AHAM room rating 392 sq ft (Winix), about 253 cfm smoke CADR (Air Purifier First); HouseFresh measured 249 cfm PM1
- Quiet cleaning: HouseFresh: 125 cfm PM1 CADR under 45 dBA at 3 ft
- Floor footprint: Air Purifier First measurement: 13.6 × 8.3 in = 113 sq in