XiaomiAC-M18-SC

Air purifier

DOE certified smoke CADR

113cfmDOE test

Dust 118 · PM2.5 115 cfm

Effective room size 175 sq ft (DOE)

DOE data as of 2026-11-03DOE record

Does it fit your room? How DOE sizes rooms

Xiaomi AC-M18-SC: certified to DOE with smoke CADR 113 cfm, dust 118, PM2.5 115, effective room size 175 sq ft. DOE data as of 2026-11-03.

Every model number on this record

Filed with DOE under basic model AC-M18-SC. A listing with any of these numbers is this unit.

Every model number filed under basic model AC-M18-SC, DOE data as of 2026-11-03
Model numberFiled by
AC-M18-SC (DOE basic model)Xiaomi

How much does the Xiaomi AC-M18-SC cost to run?

About $2.27 a month, or $27.24 a year, on DOE's annual energy figure of 150 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 $1.50.

How does the Xiaomi AC-M18-SC rank in its DOE class?

In its DOE class (air purifiers, PM2.5 CADR 100 to 149 cfm), 28 models have a matched Amazon listing. 16 of them have a higher CADR/W than its 4.5, which is 7% below their median of 4.85.

DOE's annual energy figure for it is 150 kWh, against their median of 168 kWh: $3.27 a year less at the US average price.

Air purifiers (133 with a listing)

Among 66 air purifiers, PM2.5 CADR 100 to 149 cfm

Smoke CADR (cfm)113

Higher than 12 of 66.

93145 cfm

Efficiency (CADR/W)4.5

Higher than 30 of 66.

2.49.1

Three to compare with

From models with a matched listing.

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

    Windmill SAP2V1130 smoke CADR

    Room size 202 sq ft, CADR/W 6.4: about 30% less power for the same clean air.

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

    Dreo DR-HAP008115 smoke CADR

    Room size 178 sq ft, CADR/W 5.5: about 18% less power for the same clean air.

  • Nearest bigger unit

    Honeywell HPA5100B134 smoke CADR

    Room size 207 sq ft, CADR/W 2.6.

DOE record

Air cleaning

Smoke CADR
113 cfm
Dust CADR
118 cfm
PM2.5 CADR
115 cfm
Effective room size
175 sq ft
Efficiency (IEF)
4.5 cfm/W
Energy use
150 kWh/year

Record

DOE basic model
AC-M18-SC
DOE class
100 <= PM2.5 Clean Air Delivery Rate < 150
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 175 sq ft, based on its smoke CADR of 113 cfm: CADR and room size.
How much does the Xiaomi AC-M18-SC cost to run for a year?
About $27.24: DOE's annual figure of 150 kWh at 18.16¢/kWh, the US residential average for August 2026 (EIA).