Desk research only. No hands-on testing was performed by Filter Math. All social evidence is paraphrased, never quoted verbatim. Health-adjacent claims appear only as attributed owner/reviewer accounts, never as proven medical efficacy. Marketplace prices are asking prices, not completed sales. All time-sensitive facts and prices dated 2026-09-23 unless otherwise noted. UNVERIFIED marks facts that could not be confirmed from a recovered source. Seed-file attributions (market-selection file) were treated as leads, not citations; claims from it were not reused without independent recovery.
1. Disclosure
This dossier was built from independent tester reviews (HouseFresh, garagetested), spec aggregators, and affiliate price roundups, observed 2026-09-23, plus limited social-tool access. Social discovery was attempted via Threads CLI, Facebook CLI, and Instagram CLI on 2026-09-23; direct owner posts for this model were not recovered. Where the seed market-selection file named a source without a URL, that claim was treated as a lead and is not cited here unless independently recovered (see private source ledger _source-ledger.md, which never ships).
2. Overview / current version
The Winix 5500-2 is the long-running non-Wi-Fi mid-size Winix: 232/243/246 CADR, washable pre-filter, pellet-carbon filter, True HEPA, PlasmaWave, auto mode, timer, and a remote — but no app. It is the "dumb but proven" alternative to the smart 5510/5520 and C545, and a perennial value pick in 2026 roundups at $150–180 street.
3. Social standing & validation tier
UNVALIDATED — included for comparison, low community signal.
- No Threads, Instagram, or Facebook owner posts specific to the 5500-2 were directly observed in Filter Math's session (Threads search attempted 2026-09-23; Facebook groups search failed with a connector grant error — access failure, not no-results).
- Attributable coverage is tester-driven (HouseFresh measured review, garagetested, spec aggregators). Owner-level social signal was not recovered.
4. Specs
| Spec | Value |
|---|---|
| CADR | 232 smoke / 243 dust / 246 pollen |
| Room coverage | 360 ft² at 4.8 ACH |
| Noise | HouseFresh measured 38.8–58.9 dB — one tester's finding |
| Power | HouseFresh measured 53.46W at top; rated up to 70W |
| Filtration | Washable pre-filter, pellet-carbon filter, True HEPA, PlasmaWave |
| Filter life | 12 months |
| Features | Auto mode, timer, remote, filter indicator; no Wi-Fi/app |
5. Price observed 2026-09-23
- $150–180 — September 2026 affiliate price range (observed 2026-09-23). Treat as a roundup-reported range, not a live checkout price.
6. Annual filter cost
- Conflicted — preserved as found:
- $50/yr (HouseFresh)
- ~$79–80/yr (other sources)
- No current genuine filter SKU price was confirmed on 2026-09-23 — the conflict is unresolved, UNVERIFIED as consensus.
7. Included / needed
- In the box (per standard retail listings): purifier with filter set installed, remote. No app to set up. Replacement filter sets are the recurring need. PlasmaWave can be disabled (reviewer-noted).
8. Support & warranty
- UNVERIFIED in the documented sample.
9. Attributed owner / reviewer complaints
- Settings loss on power interruption: reviewers note the unit loses settings (and PlasmaWave may return to its enabled state) after power loss — attributed to tester reviews. For buyers who keep PlasmaWave disabled, this is a real annoyance.
- Odor-only sensor limitation: one tester notes the sensor responds to odors/VOCs rather than particles — attributed to that tester, not a consensus.
- Turbo noise: the 58.9 dB measured top end is loud; consistent with the class, but the documented complaint pattern.
- PlasmaWave / trace-ozone concern: the standard Winix-owner/reviewer unease, framed as a concern not a harm claim. (The shared ledger records a recovered AnandTech thread — snippet-derived from search index, not direct post access — with posters critical of PlasmaWave's value, built-in sensor reliability, and Winix QC/support; the thread discusses the 5300-2/C545 generation. Paraphrased only.)
10. Cross-brand comparison notes
- The 5500-2 vs. Coway AP-1512HH is the classic mid-size value debate: nearly identical CADR bands (232/243/246 vs. 233/246/240), the Winix adding a remote and pellet carbon, the Coway adding eco mode that fully stops the fan. The 5500-2 vs. 5510 is the "dumb vs. smart" Winix-internal choice — same brand, same filter ecosystem, $150–180 vs. $179.99 list. No current measured head-to-head of the 5500-2 against the Mighty was found in the documented sample.
11. Community verdict
Tester-respected value pick with documented quirks (settings loss, PlasmaWave reset behavior, loud turbo) and an unresolved filter-cost conflict. Owner conversations were not recovered; the tester findings are the best available ownership proxy.
12. Sources (dated)
| Source | Observed | Supports |
|---|---|---|
| https://housefresh.com/winix-5500-2-review/ | 2026-09-23 (search snippet) | Independent measured review; 38.8–58.9 dB; 53.46W top; $50/yr filter estimate |
| https://www.alphachooser.com/air_purifiers--winix_5500-2--air_purifier-specs-and-profile | 2026-09-23 (search snippet) | Spec profile |
| https://garagetested.com/air-purifier/winix-5500-2/ | 2026-09-23 (search snippet) | Independent review |
| https://forums.anandtech.com/threads/anyone-use-air-purifiers.2592960/ | 2026-09-23 (recovered via one bounded web search; snippet-derived from search index, NOT direct forum access) | Posters critical of PlasmaWave value, built-in sensor reliability, Winix QC/support (5300-2/C545 generation). Paraphrase only |
13. UNVERIFIED / open gaps
- Live checkout price (vs. $150–180 roundup range): UNVERIFIED.
- Annual filter cost: $50 vs. ~$79–80 conflict unresolved — UNVERIFIED.
- Warranty/support terms: UNVERIFIED.
- Direct owner posts: not found in the documented sample.
- No measured head-to-head vs. the Coway Mighty found in the documented sample.