SmartmiKQJHQ02ZM

Air purifier

DOE certified smoke CADR

195cfmDOE test

Dust 197 · PM2.5 196 cfm

Effective room size 302 sq ft (DOE)

DOE data as of 2026-11-03DOE record

Does it fit your room? How DOE sizes rooms

Smartmi KQJHQ02ZM: certified to DOE with smoke CADR 195 cfm, dust 197, PM2.5 196, effective room size 302 sq ft. DOE data as of 2026-11-03.

Every model number on this record

Filed with DOE under basic model KQJHQ02ZM. A listing with any of these numbers is this unit.

Every model number filed under basic model KQJHQ02ZM, DOE data as of 2026-11-03
Model numberFiled by
KQJHQ02ZM (DOE basic model)Smartmi

How much does the Smartmi KQJHQ02ZM cost to run?

About $3.72 a month, or $44.67 a year, on DOE's annual energy figure of 246 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 $2.46.

How does the Smartmi KQJHQ02ZM rank in its DOE class?

In its DOE class (air purifiers, PM2.5 CADR 150+ cfm), 63 models have a matched Amazon listing. 35 of them have a higher CADR/W than its 4.6, which is 8% below their median of 5.

DOE's annual energy figure for it is 246 kWh, against their median of 266 kWh: $3.63 a year less 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)195

Higher than 42 of 140. 1 other shares 195.

143591 cfm

Efficiency (CADR/W)4.6

Higher than 44 of 140. 5 others share 4.6.

313.5

Three to compare with

From models with a matched listing.

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

    DREAME CVF16A186 smoke CADR

    Room size 288 sq ft, CADR/W 5.3: about 13% less power for the same clean air.

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

    Priestley P360195 smoke CADR

    Room size 302 sq ft, CADR/W 5.1: about 10% less power for the same clean air.

  • Nearest bigger unit

    DREAME CVF61A216 smoke CADR

    Room size 335 sq ft, CADR/W 3.4.

DOE record

Air cleaning

Smoke CADR
195 cfm
Dust CADR
197 cfm
PM2.5 CADR
196 cfm
Effective room size
302 sq ft
Efficiency (IEF)
4.6 cfm/W
Energy use
246 kWh/year

Record

DOE basic model
KQJHQ02ZM
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 302 sq ft, based on its smoke CADR of 195 cfm: CADR and room size.
How much does the Smartmi KQJHQ02ZM cost to run for a year?
About $44.67: DOE's annual figure of 246 kWh at 18.16¢/kWh, the US residential average for August 2026 (EIA).