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Air Purifier Readout

Updated October 24, 2026 by Maren Ostrowski. No lab, no hype: picks built on independent tests and AHAM ratings.

Which Winix Air Purifier Should You Buy?

Winix built its name on the 5500-2, a carbon-filter workhorse that is now discontinued. The 5510 replaces it, and a few older models still sell alongside.

  • 392 sq ftthe 5510’s AHAM rating
  • PlasmaWaveWinix’s ionizer, switchable on the 5510
  • Discontinuedthe 5500-2, per HouseFresh

Short answer

Buy the Winix 5510: HouseFresh calls it the Winix to buy now that the 5500-2 is discontinued, and its pellet carbon handles cooking and pet smells. For a small bedroom, the Winix A230 is HouseFresh’s small-room pick. The AM90 and 9800 are older models we found no recent independent tests for.

If you needStart withWhy
Most roomsWinix 5510Pellet carbon; app
Small bedroomWinix A230AHAM 230 sq ft
Wi-Fi, medium roomWinix AM90AHAM 360 sq ft; no recent independent test
Large roomWinix 9800AHAM 500 sq ft; no recent independent test

What buyers actually worry about

“Does PlasmaWave produce ozone?”

PlasmaWave is an ionizer, which is why some buyers avoid it. You can switch it off and use the purifier as a plain filter; HouseFresh ran its 5510 tests both ways. Models sold in California must be CARB certified for ozone.

Off switch: HouseFresh re-tested the 5510 with PlasmaWave disabled for readers who avoid ionizers.

“The 5500-2 is gone. Is the 5510 the same thing?”

Close. Winix support told AirPurifierFirst the 5510 holds the same amount of carbon pellets, and it adds an app and a better-looking body. HouseFresh found it louder on high than older mid-size Winix models.

Price cut: HouseFresh reports Winix dropped the 5510 to $179.99 after the 5500-2 was discontinued.

“Which replacement filter does the 5510 take?”

Check the label inside your unit before ordering. Winix’s genuine Filter H is listed for the 5500-2, and our product data doesn’t confirm it for the 5510.

One year: Winix’s rated life for Filter H.

These come from brand searches on Bing and from what reviewers measured. We summarize; we don’t run our own lab.

The lineup at a glance

ModelAHAM roomCarbonPlasmaWaveAppBest for
Winix 5510392 sq ftPelletsYes, switchableYesMost rooms
Winix A230230 sq ftYesYesNoSmall rooms
Winix AM90360 sq ftYesYesYesWi-Fi in a medium room
Winix 9800500 sq ftYesYesYesLarge rooms

Models we cover

Cards marked “Not yet independently tested” rely on listing data only.

1Winix 5510
Best Winix for most rooms

Winix 5510

HouseFresh’s Winix pick, with pellet carbon, an app and about 250 cfm. Full write-up in our top 10.

Room it suits
Up to 392 sq ft
Smoke CADR
About 250 cfm
Filters
Washable mesh, carbon, True HEPA
Yearly cost
Not in our data
Buy it if

you cook a lot, have pets, or want a medium-to-large-room purifier with app control at a mid price.

Skip it if

you need a quiet top speed. HouseFresh found the 5510 louder on high than similar purifiers. Run it a notch lower, or move up to the Levoit Core 600S-P so a lower speed still covers the room.

Sources: HouseFresh, Winix 5510 review; HouseFresh, The best Winix air purifiers; Consumer Reports, Winix 5510 model page; AirPurifierFirst, Winix 5510 vs Winix 5500-2.

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2Winix A230
Best small Winix

Winix A230

HouseFresh’s small-room Winix pick, AHAM-verified for 230 sq ft.

AHAM Verifide at 230 sq ft and up to 1,110 sq ft in an hour, with a True HEPA filter, a carbon filter, PlasmaWave and auto mode.

Room it suits
Up to 230 sq ft
Smoke CADR
About 148 cfm
Filters
Carbon, True HEPA
Yearly cost
Not in our data
Buy it if

you want a cheap, simple purifier for a bedroom up to about 230 sq ft.

Skip it if

you want an app. The Levoit Core 300S-P has one.

Sources: HouseFresh, The best Winix air purifiers (small-room pick).

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3Winix AM90
Wi-Fi Winix for medium rooms

Winix AM90No recent independent test found

AHAM-verified for 360 sq ft with app control; no recent independent test.

AHAM Verifide at 360 sq ft and up to 1,740 sq ft in an hour, with a carbon filter, PlasmaWave, an air quality light, auto mode and Wi-Fi app control.

Room it suits
Up to 360 sq ft
Smoke CADR
About 232 cfm
Filters
Washable mesh, carbon, True HEPA
Yearly cost
Not in our data
Buy it if

you want a Winix with Wi-Fi in a medium room and see it on sale.

Skip it if

you want the current Winix to buy. The Winix 5510 covers a bit more room.

Sources: Amazon listing data.

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4Winix 9800
Biggest Winix

Winix 9800No recent independent test found

AHAM-verified for 500 sq ft with dual sensors; no recent independent test.

AHAM Verifide at 500 sq ft and up to 2,420 sq ft in an hour, with dual sensors, a light-activated sleep mode and 26.2 dB on the lowest speed.

Room it suits
Up to 500 sq ft
Smoke CADR
About 323 cfm
Filters
Washable mesh, carbon, True HEPA
Yearly cost
Not in our data
Buy it if

you want the biggest Winix with an app for a large room.

Skip it if

you want a tested big-room purifier. The Levoit Core 600S-P has independent tests behind it.

Sources: Amazon listing data.

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Questions, answered short

Winix 5510 vs 5500-2: what changed?

The 5510 adds app control and a new body, and Winix says it holds the same carbon as the 5500-2. The 5500-2 is discontinued, per HouseFresh.

Winix 5510 vs AM90: which is better?

The Winix 5510. It covers more room, 392 sq ft against 360, and has the more recent independent tests.

Is Winix good for pets?

Yes. The pellet carbon in the Winix 5510 handles pet smells, and the washable mesh pre-filter catches hair.

How loud is the Winix 5510?

Winix quotes 23.5 dB on the lowest speed. HouseFresh measured 35.2 to 67.2 dBA across its speeds and found it louder on high than similar purifiers.

Does Winix have an app?

The 5510, AM90 and 9800 work with the Winix app. The A230 doesn’t.

How often should I change a Winix filter?

Winix rates Filter H for one year. Wash the mesh pre-filter when it looks gray.