WinixD480

Air purifier

DOE certified smoke CADR

321cfmDOE test

Dust 325 · PM2.5 324 cfm

Effective room size 498 sq ft (DOE)

DOE data as of 2026-11-03DOE record

Does it fit your room? How DOE sizes rooms

Winix D480: certified to DOE with smoke CADR 321 cfm, dust 325, PM2.5 324, effective room size 498 sq ft. DOE data as of 2026-11-03.

Every model number on this record

Filed with DOE under basic model D480. A listing with any of these numbers is this unit.

Every model number filed under basic model D480, DOE data as of 2026-11-03
Model numberFiled by
D480 (DOE basic model)Winix

How much does the Winix D480 cost to run?

About $7.60 a month, or $91.16 a year, on DOE's annual energy figure of 502 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 $5.02.

How does the Winix D480 rank in its DOE class?

In its DOE class (air purifiers, PM2.5 CADR 150+ cfm), 63 models have a matched Amazon listing. Its CADR/W of 3.8 is 52nd of the 63, and 24% below their median of 5.

DOE's annual energy figure for it is 502 kWh, against their median of 266 kWh: $42.86 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)321

Higher than 107 of 140. 2 others share 321.

143591 cfm

Efficiency (CADR/W)3.8

Higher than 19 of 140.

313.5

Three to compare with

From models with a matched listing.

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

    Blueair 4412311000321 smoke CADR

    Room size 498 sq ft, CADR/W 10.2: about 63% less power for the same clean air.

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

    LG AS601HHB0309 smoke CADR

    Room size 479 sq ft, CADR/W 5.8: about 34% less power for the same clean air.

  • Nearest bigger unit

    Sharp KCP110UW347 smoke CADR

    Room size 538 sq ft, CADR/W 3.9.

DOE record

Air cleaning

Smoke CADR
321 cfm
Dust CADR
325 cfm
PM2.5 CADR
324 cfm
Effective room size
498 sq ft
Efficiency (IEF)
3.8 cfm/W
Energy use
502 kWh/year

Record

DOE basic model
D480
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 498 sq ft, based on its smoke CADR of 321 cfm: CADR and room size.
How much does the Winix D480 cost to run for a year?
About $91.16: DOE's annual figure of 502 kWh at 18.16¢/kWh, the US residential average for August 2026 (EIA).