OransiMJR01

Air purifier

DOE certified smoke CADR

234cfmDOE test

Dust 234 · PM2.5 236 cfm

Effective room size 363 sq ft (DOE)

DOE data as of 2026-11-03DOE record

Does it fit your room? How DOE sizes rooms

Oransi MJR01: certified to DOE with smoke CADR 234 cfm, dust 234, PM2.5 236, effective room size 363 sq ft. DOE data as of 2026-11-03.

Every model number on this record

Filed with DOE under basic model MJR01. A listing with any of these numbers is this unit.

Every model number filed under basic model MJR01, DOE data as of 2026-11-03
Model numberFiled by
MJR01 (DOE basic model)Oransi

How much does the Oransi MJR01 cost to run?

About $4.39 a month, or $52.66 a year, on DOE's annual energy figure of 290 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 $2.90.

How does the Oransi MJR01 rank in its DOE class?

In its DOE class (air purifiers, PM2.5 CADR 150+ cfm), 63 models have a matched Amazon listing. 34 of them have a higher CADR/W than its 4.7, which is 6% below their median of 5.

DOE's annual energy figure for it is 290 kWh, against their median of 266 kWh: $4.36 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)234

Higher than 66 of 140. 1 other shares 234.

143591 cfm

Efficiency (CADR/W)4.7

Higher than 50 of 140. 2 others share 4.7.

313.5

Three to compare with

From models with a matched listing.

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

    DREAME CVF20B224 smoke CADR

    Room size 347 sq ft, CADR/W 8.8: about 47% less power for the same clean air.

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

    Blueair 6331411000232 smoke CADR

    Room size 360 sq ft, CADR/W 4.9.

  • Nearest bigger unit

    Coway AP-1526D255 smoke CADR

    Room size 395 sq ft, CADR/W 7.6.

DOE record

Air cleaning

Smoke CADR
234 cfm
Dust CADR
234 cfm
PM2.5 CADR
236 cfm
Effective room size
363 sq ft
Efficiency (IEF)
4.7 cfm/W
Energy use
290 kWh/year

Record

DOE basic model
MJR01
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 363 sq ft, based on its smoke CADR of 234 cfm: CADR and room size.
How much does the Oransi MJR01 cost to run for a year?
About $52.66: DOE's annual figure of 290 kWh at 18.16¢/kWh, the US residential average for August 2026 (EIA).