SharpFXJ80UW

Air purifier · DOE basic model FX-J80U-W

DOE certified smoke CADR

315cfmDOE test

Dust 316 · PM2.5 315 cfm

Effective room size 488 sq ft (DOE)

DOE data as of 2026-11-03DOE record

Does it fit your room? How DOE sizes rooms

Sharp FXJ80UW: certified to DOE with smoke CADR 315 cfm, dust 316, PM2.5 315, effective room size 488 sq ft. DOE data as of 2026-11-03.

Every model number on this record

Filed with DOE under basic model FX-J80U-W. A listing with any of these numbers is this unit.

Every model number filed under basic model FX-J80U-W, DOE data as of 2026-11-03
Model numberFiled by
FX-J80U-W (DOE basic model)Sharp
FXJ80UWSharp

How much does the Sharp FXJ80UW cost to run?

About $6.90 a month, or $82.81 a year, on DOE's annual energy figure of 456 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 $4.56.

How does the Sharp FXJ80UW rank in its DOE class?

In its DOE class (air purifiers, PM2.5 CADR 150+ cfm), 63 models have a matched Amazon listing. 32 of them have a higher CADR/W than its 4.9, which is 2% below their median of 5.

DOE's annual energy figure for it is 456 kWh, against their median of 266 kWh: $34.50 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)315

Higher than 105 of 140.

143591 cfm

Efficiency (CADR/W)4.9

Higher than 54 of 140. 4 others share 4.9.

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 52% 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 16% less power for the same clean air.

  • Nearest bigger unit

    Winix C909337 smoke CADR

    Room size 522 sq ft, CADR/W 4.

DOE record

Air cleaning

Smoke CADR
315 cfm
Dust CADR
316 cfm
PM2.5 CADR
315 cfm
Effective room size
488 sq ft
Efficiency (IEF)
4.9 cfm/W
Energy use
456 kWh/year

Record

DOE basic model
FX-J80U-W
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 488 sq ft, based on its smoke CADR of 315 cfm: CADR and room size.
How much does the Sharp FXJ80UW cost to run for a year?
About $82.81: DOE's annual figure of 456 kWh at 18.16¢/kWh, the US residential average for August 2026 (EIA).