Is the Winix 5500-2 still worth it?
Room air purifier · suggested up to 370 sq ft · True HEPA (H13) + activated carbon
Winix 5510 on Amazon · $179.99 →The 5500-2’s replacement: more smoke CADR, sold by Amazon.com. Affiliate link.
It was a good purifier, but we found no new one for sale on Amazon. Buy its replacement, the 5510 ($179.99), which cleans more smoke. Already own a 5500-2? It takes Filter H, $28.48 a year.
Winix 5500-2 review
The short answer
The Winix 5500-2 certifies 239 CFM of smoke clearing for a room up to 370 sq ft, but we found no listing for it on Amazon on October 17, 2026. Winix's replacement is the 5510: AHAM rates it higher (253 smoke CADR, 392 sq ft) and Amazon.com sold it for $179.99. If you can spend $6 more, the AT40 cleans more again (265) on 45 W and ships with two years of filters.
- Winix 5510 on Amazon · $179.99 The 5500-2’s replacement: more smoke CADR, sold by Amazon.com
- Genuine Filter H · $28.48 For a 5500-2 you already own; lasts one year
- Winix AT40 · $185.64 Cheapest Winix to own for two years: 45 W, 2 years of filters
Prices on Amazon on the review date; they change often. Affiliate links; we earn a commission at no cost to you.
All 25 certified Winix models compared, with prices →
At a glance
Who it's for
Owners looking for filters, and shoppers who saw it recommended. New units: buy the 5510 instead.
The standout number
239 smoke CADR for 370 sq ft, the same certified numbers as the C535, 5300-2.
The catch
Not for sale on Amazon on October 17, 2026. Its filter (Filter H, $28.48) still is.
The Verified Label — every AHAM-tested spec
not ENERGY STAR
US market
Clean Air Delivery Rate (CADR) — source: AHAM
Coverage & power — source: AHAM (+ computed)
Filter & identity
How it ranks
Where this unit sits among the 235 room air purifiers we track, on the two numbers that decide one: how fast it clears fine smoke particles, and how big a room it covers. Percentiles are computed from our corpus (higher = better).
Smoke CADR
Better than 73%
of the 235 units with a published smoke CADR
Suggested room size
Better than 73%
of the 235 units with a published room size
The 5500-2 vs what replaced it
Smoke CADR and room size are AHAM-certified. Filter cost is the genuine filter on Amazon, replaced yearly. Power cost is running all day on the smoke-test speed at 18.83¢ per kWh. Amazon prices on October 17, 2026.
| Unit | Smoke CADR | Room (sq ft) | Filter / yr | Power / yr | 2-year cost | Where |
|---|---|---|---|---|---|---|
| Winix 5500-2This page; not on Amazon | 239 | 370 | $28 | $95 | — | Not on Amazon |
| Winix 5510Its replacement | 253 | 392 | $47 | $107 | $442 | $179.99 on Amazon |
| Winix AT4045 W, ENERGY STAR, 2 filter sets in the box | 265 | 410 | $50 | $74 | $334 | $185.64 on Amazon |
The 5500-2 is cheaper to run (57.8 W vs 65 W) and its filter costs less, but it is not sold new on Amazon now.
Sources: AHAM Verifide directory: Winix 5500-2, 5510, AT40 · Amazon listing: Genuine Winix 116130 Replacement Filter H for 5500-2 Air Purifier, White · Amazon listing: WINIX 5510 Air Purifier (New Generation of 5500-2 with App Support) for Home Large Room Up · Amazon listing: WINIX AT40 Air Purifier with 2 Years of Filters for Extra Large Room Up to 1968 Ft² in 1 H
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Frequently asked questions
Is the Winix 5500-2 discontinued?
We found no Amazon listing selling a new 5500-2 on October 17, 2026, and Amazon.com sells the 5510 as its "new generation". AHAM still lists the 5500-2's certification.
What replaced the Winix 5500-2?
The 5510 (and its twins, the 5520 and 5530). AHAM rates them 253 smoke CADR for 392 sq ft vs 239 and 370 for the 5500-2.
What filter does the Winix 5500-2 use?
Winix Filter H, part 116130. The genuine filter was $28.48 at Amazon.com on October 17, 2026; Winix says it lasts one year. (Filter A, 115115, is for the 5300-2 and C535.)
Winix 5500-2 vs 5510: is the upgrade worth it?
If your 5500-2 works, no: keep it and buy Filter H. If you are buying new, the 5510 is the one on sale, and it cleans more (253 vs 239 smoke CADR) at 65 W vs 57.8 W.
Which Winix models are the same as the 5500-2?
AHAM lists identical certified numbers for the 5500-2 and the C535 and 5300-2.
How big a room does the Winix 5500-2 cover?
AHAM suggests it for a room up to 370 square feet. That rating assumes it runs on high and cleans the air about 4.8 times an hour. For faster cleaning — say for wildfire smoke or allergies — size it to a smaller room than the maximum.
What is the CADR of the Winix 5500-2?
Its AHAM Clean Air Delivery Rate is 244 for dust, 239 for smoke and 247 for pollen, with a PM2.5 CADR of 241. CADR is cubic feet of clean air delivered per minute — higher clears a room faster.
Does the Winix 5500-2 use a real HEPA filter?
Its filter is listed as True HEPA (H13) + activated carbon. True HEPA captures 99.97% of particles down to 0.3 microns. The activated-carbon layer also helps with odors and gases.
How much power does the Winix 5500-2 use?
About 57.8 watts on its smoke-clearing setting, which works out to 4.1 CADR per watt — a measure of how much clean air you get for the electricity it draws. It is not ENERGY STAR certified.
Sources. Clean Air Delivery Rate (dust / smoke / pollen), PM2.5 CADR, suggested room size, ENERGY STAR status and power draw come from the AHAM Verifide air-cleaner directory (the industry's independent CADR test). Average CADR, clean-air-per-watt and the percentile figures are computed by Verified HVAC Data from those published ratings. We publish no star ratings and take no payment for placement. "Not published" means AHAM's record doesn't disclose it — we never fill a spec with a guess.
Winix 5510 on Amazon · $179.99 → See how it ranks against every purifier