BARENK03

Air purifier · sold under 5 brands

DOE certified smoke CADR, most filings

88cfmDOE test

Dust 94 · PM2.5 91 cfm

88filed by 3 brands
44filed by 2 brands

Filings differ. Both are shown, with each brand's own figure in its row.

Effective room size 136 sq ft (DOE)

DOE data as of 2026-11-03DOE record

Does it fit your room? How DOE sizes rooms

BAREN K03: certified to DOE with smoke CADR 88 cfm (the figure most of its filings list), dust 94, PM2.5 91, effective room size 136 sq ft. The same unit is also filed as EZDONE K03, KOIOS K03, MOOKA K03 and 1 more brand. DOE data as of 2026-11-03.

Every model number on this record

Filed with DOE under basic model K03. A listing with any of these numbers is this unit.

Every model number filed under basic model K03, DOE data as of 2026-11-03
Model numberFiled by
K03 (DOE basic model)EZDONE, YADU, BAREN, KOIOS, MOOKA

Same unit, 5 brands

Every brand files K03.

  • BAREN Filed: 88 cfmNo listing matched
  • EZDONE Filed: 44 cfmNo listing matched
  • KOIOS Filed: 88 cfmNo listing matched
  • MOOKA Filed: 88 cfmNo listing matched
  • YADU Filed: 44 cfmNo listing matched

Filings differ for this unit: each brand's own figure is in its row.

All 5 filed under DOE basic model K03. Listing status as of 2026-11-03.

Compare the 5 brands on one page

How much does the BAREN K03 cost to run?

About $2.10 a month, or $25.24 a year, on DOE's annual energy figure of 139 kWh. Worked out from the figure most of its filings list.

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 $1.39.

How does the BAREN K03 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. 18 of them have a higher CADR/W than its 3.8, which is 13% above their median of 3.35.

DOE's annual energy figure for it is 139 kWh, against their median of 94.5 kWh: $8.08 a year more 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)88

Higher than 86 of 90.

1993 cfm

Efficiency (CADR/W)3.8

Higher than 48 of 90.

1.914

Three to compare with

From models with a matched listing.

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

    Blueair 313100010069 smoke CADR

    Room size 107 sq ft, CADR/W 8: about 53% less power for the same clean air.

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

    BOSCH Air 200086 smoke CADR

    Room size 133 sq ft, CADR/W 5.3: about 28% less power for the same clean air.

  • Nearest bigger unit

    Dreo DR-HAP008115 smoke CADR

    Room size 178 sq ft, CADR/W 5.5.

DOE record

Air cleaning

Smoke CADR
88 cfm
Dust CADR
94 cfm
PM2.5 CADR
91 cfm
Effective room size
136 sq ft
Efficiency (IEF)
3.8 cfm/W
Energy use
139 kWh/year

Record

DOE basic model
K03
DOE class
10 <= PM2.5 Clean Air Delivery Rate < 100
Brands on the filings
5
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 136 sq ft, based on its smoke CADR of 88 cfm: CADR and room size.
How much does the BAREN K03 cost to run for a year?
About $25.24, from the figure most of its filings list: DOE's annual figure of 139 kWh at 18.16¢/kWh, the US residential average for August 2026 (EIA).
Who makes the BAREN K03?
DOE's database has no manufacturer field, so the record doesn't say. It does show 5 brands filing one basic model, K03: BAREN, EZDONE, KOIOS and 2 more.
Is the BAREN K03 the same as the EZDONE K03?
Yes, by DOE's records. EZDONE files the same basic model, K03, though its own filing lists 44 cfm against 88. 3 other brands file it too.