CowayAP-0425C(LG)

Air purifier · DOE basic model Airmega 50

DOE certified smoke CADR

67cfmDOE test

Dust 74 · PM2.5 71 cfm

Effective room size 104 sq ft (DOE)

DOE data as of 2026-11-03DOE record

Does it fit your room? How DOE sizes rooms

Coway AP-0425C(LG): certified to DOE with smoke CADR 67 cfm, dust 74, PM2.5 71, effective room size 104 sq ft. DOE data as of 2026-11-03.

Every model number on this record

Filed with DOE under basic model Airmega 50. A listing with any of these numbers is this unit.

Every model number filed under basic model Airmega 50, DOE data as of 2026-11-03
Model numberFiled by
Airmega 50 (DOE basic model)–
AP-0425C(LG)Coway
AP-0425C(SG)Coway
Airmega 50(LG)Coway
Airmega 50(SG)Coway

How much does the Coway AP-0425C(LG) cost to run?

About $1.01 a month, or $12.17 a year, on DOE's annual energy figure of 67 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 67¢.

How does the Coway AP-0425C(LG) rank in its DOE class?

In its DOE class (air purifiers, PM2.5 CADR 10 to 99 cfm), 42 models have a matched Amazon listing. Its CADR/W of 6.1 is tied for 4th of the 42, and 82% above their median of 3.35.

DOE's annual energy figure for it is 67 kWh, against their median of 94.5 kWh: $4.99 a year less at the US average price.

Air purifiers (133 with a listing)

Among 90 air purifiers, PM2.5 CADR 10 to 99 cfm

Smoke CADR (cfm)67

Higher than 59 of 90.

1993 cfm

Efficiency (CADR/W)6.1

Higher than 81 of 90. 2 others share 6.1.

1.914

Three to compare with

From models with a matched listing.

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

    DREAME CVA10B54 smoke CADR

    Room size 84 sq ft, CADR/W 10.3: about 41% less power for the same clean air.

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

    Blueair 313100010069 smoke CADR

    Room size 107 sq ft, CADR/W 8: about 24% less power for the same clean air.

  • Nearest bigger unit

    Sharp FPH30UH92 smoke CADR

    Room size 143 sq ft, CADR/W 2.1.

DOE record

Air cleaning

Smoke CADR
67 cfm
Dust CADR
74 cfm
PM2.5 CADR
71 cfm
Effective room size
104 sq ft
Efficiency (IEF)
6.1 cfm/W
Energy use
67 kWh/year

Record

DOE basic model
Airmega 50
DOE class
10 <= PM2.5 Clean Air Delivery Rate < 100
Brands on the filings
1
In DOE's list since
2026-11-02first snapshot we hold
UPC (ENERGY STAR record)
826439001308
ENERGY STAR record
Airmega 50certified 2025-03-26

Questions

What room size is it for?
DOE lists an effective room size of 104 sq ft, based on its smoke CADR of 67 cfm: CADR and room size.
How much does the Coway AP-0425C(LG) cost to run for a year?
About $12.17: DOE's annual figure of 67 kWh at 18.16¢/kWh, the US residential average for August 2026 (EIA).