WinixWX100

Air purifier

DOE certified smoke CADR

270cfmDOE test

Dust 276 · PM2.5 273 cfm

Effective room size 418 sq ft (DOE)

DOE data as of 2026-11-03DOE record

Does it fit your room? How DOE sizes rooms

Winix WX100: certified to DOE with smoke CADR 270 cfm, dust 276, PM2.5 273, effective room size 418 sq ft. DOE data as of 2026-11-03.

Every model number on this record

Filed with DOE under basic model WX100. A listing with any of these numbers is this unit.

Every model number filed under basic model WX100, DOE data as of 2026-11-03
Model numberFiled by
WX100 (DOE basic model)Winix

How much does the Winix WX100 cost to run?

About $6.66 a month, or $79.90 a year, on DOE's annual energy figure of 440 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 $4.40.

How does the Winix WX100 rank in its DOE class?

In its DOE class (air purifiers, PM2.5 CADR 150+ cfm), 63 models have a matched Amazon listing. 54 of them have a higher CADR/W than its 3.6, which is 28% below their median of 5.

DOE's annual energy figure for it is 440 kWh, against their median of 266 kWh: $31.60 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)270

Higher than 83 of 140. 2 others share 270.

143591 cfm

Efficiency (CADR/W)3.6

Higher than 13 of 140. 2 others share 3.6.

313.5

Three to compare with

From models with a matched listing.

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

    Blueair 3332111100283 smoke CADR

    Room size 439 sq ft, CADR/W 8.4: about 57% less power for the same clean air.

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

    SIESEAN AP-480270 smoke CADR

    Room size 419 sq ft, CADR/W 6.4: about 44% less power for the same clean air.

  • Nearest bigger unit

    Dreo DR-HAP003S294 smoke CADR

    Room size 456 sq ft, CADR/W 6.2.

DOE record

Air cleaning

Smoke CADR
270 cfm
Dust CADR
276 cfm
PM2.5 CADR
273 cfm
Effective room size
418 sq ft
Efficiency (IEF)
3.6 cfm/W
Energy use
440 kWh/year

Record

DOE basic model
WX100
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 418 sq ft, based on its smoke CADR of 270 cfm: CADR and room size.
How much does the Winix WX100 cost to run for a year?
About $79.90: DOE's annual figure of 440 kWh at 18.16¢/kWh, the US residential average for August 2026 (EIA).