WinixAM90

Air purifier

DOE certified smoke CADR

241cfmDOE test

Dust 238 · PM2.5 239 cfm

Effective room size 373 sq ft (DOE)

DOE data as of 2026-11-03DOE record

Does it fit your room? How DOE sizes rooms

Winix AM90: certified to DOE with smoke CADR 241 cfm, dust 238, PM2.5 239, effective room size 373 sq ft. DOE data as of 2026-11-03.

Every model number on this record

Filed with DOE under basic model AM90. A listing with any of these numbers is this unit.

Every model number filed under basic model AM90, DOE data as of 2026-11-03
Model numberFiled by
AM90 (DOE basic model)Winix

How much does the Winix AM90 cost to run?

About $4.59 a month, or $55.02 a year, on DOE's annual energy figure of 303 kWh.

Electricity at 18.16¢/kWh, the US residential average for August 2026 (EIA Electric Power Monthly, table 5.6.A). Each 1¢/kWh you pay above or below 18.16¢ moves the yearly figure by $3.03.

How does the Winix AM90 rank in its DOE class?

In its DOE class (air purifiers, PM2.5 CADR 150+ cfm), 63 models have a matched Amazon listing. 35 of them have a higher CADR/W than its 4.6, which is 8% below their median of 5.

DOE's annual energy figure for it is 303 kWh, against their median of 266 kWh: $6.72 a year more at the US average price.

Air purifiers for 300 sq ft (44 with a listing)

Among 140 air purifiers, PM2.5 CADR 150+ cfm

Smoke CADR (cfm)241

Higher than 69 of 140.

143591 cfm

Efficiency (CADR/W)4.6

Higher than 44 of 140. 5 others share 4.6.

313.5

Three to compare with

From models with a matched listing.

  • Within 20 cfm of its size, highest CADR/W

    DREAME CVF20B224 smoke CADR

    Room size 347 sq ft, CADR/W 8.8: about 48% less power for the same clean air.

  • Nearest size in its class with a higher CADR/W

    LUFTRUM C3500243 smoke CADR

    Room size 377 sq ft, CADR/W 5: about 8% less power for the same clean air.

  • Nearest bigger unit

    MEDIFY AIR MA-50-V3.0264 smoke CADR

    Room size 409 sq ft, CADR/W 6.3.

DOE record

Air cleaning

Smoke CADR
241 cfm
Dust CADR
238 cfm
PM2.5 CADR
239 cfm
Effective room size
373 sq ft
Efficiency (IEF)
4.6 cfm/W
Energy use
303 kWh/year

Record

DOE basic model
AM90
DOE class
150 <= PM2.5 Clean Air Delivery Rate
Brands on the filings
1
In DOE's list since
2026-11-02first snapshot we hold

Questions

What room size is it for?
DOE lists an effective room size of 373 sq ft, based on its smoke CADR of 241 cfm: CADR and room size.
How much does the Winix AM90 cost to run for a year?
About $55.02: DOE's annual figure of 303 kWh at 18.16¢/kWh, the US residential average for August 2026 (EIA).