Air Purifier CADR Check

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Midea KJ600G-RX600A: CADR, room size and running cost

Smoke CADR 366 cfm · Room size 567 sq ft (ENERGY STAR) · 341 kWh/yr ≈ $62.44/yr electricity (estimate)

Certified specs

Smoke CADR366 cfm
Dust CADR380 cfm
Pollen CADR422 cfm
PM2.5 CADR373 cfm
ENERGY STAR effective room size567 sq ft (1.55 × smoke CADR, per 10 CFR 429.68)
Annual energy use341 kWh/yr
Integrated energy factor6.4 cfm/W
Smoke CADR per watt6.34 cfm/W
Ozone emissions (reported)0 ppb
TechnologyFan and Filter
Filter types listedHEPA-Type
Automatic modeAir Quality Sensor,Timer
Connected (app/Wi-Fi)Yes (Wi-Fi)
ENERGY STAR Most EfficientNo
MarketsUnited States, Canada
Date certified2025-03-13
ENERGY STAR partnerGD Midea Environment Appliances MFG Co., Ltd.
SourceENERGY STAR record 4439585 (also listed as record(s) 4687034) · Product Finder page

How many air changes per hour would it give?

Estimate: air changes per hour (ACH) = smoke CADR × 60 ÷ room volume, at the top fan speed used for the CADR test. Real-world ACH is usually lower (lower fan speeds, furniture, filter loading).

RoomACH, 8 ft ceilingACH, 9 ft ceilingAHAM sizing
100 sq ft27.424.4Meets AHAM 2/3 rule
150 sq ft18.316.3Meets AHAM 2/3 rule
200 sq ft13.712.2Meets AHAM 2/3 rule
300 sq ft9.28.1Meets AHAM 2/3 rule
400 sq ft6.96.1Meets AHAM 2/3 rule
500 sq ft5.54.9Meets AHAM 2/3 rule
700 sq ft3.93.5Below AHAM 2/3 rule

AHAM's 2/3 rule: choose a smoke CADR of at least 2/3 of the room's area (8 ft ceiling). By that rule this model suits rooms up to about 549 sq ft.

Estimated yearly electricity cost

WhereResidential ratePer yearPer month
Louisiana12.72¢$43.38$3.61
U.S. average18.31¢$62.44$5.20
California33.61¢$114.61$9.55
Hawaii48.00¢$163.68$13.64

Estimate = 341 kWh/yr × rate. Rates: EIA Table 5.6.A, July 2026 (preliminary). Filter replacement cost is not included (data gap: not in ENERGY STAR data). Use your own rate and hours.

Similar CADR from other brands

ModelSmoke CADR (cfm)ENERGY STAR room size (sq ft)Energy use (kWh/yr)Est. electricity/yr*
Rainbow Luggable XL Ultra33351681$14.83
Rainbow Brisk Box Ultra37057494$17.21
Blueair 3631101000356552210$38.45
Blueair 3432111100339525227$41.56
Bosch Air 6000339525289$52.92
IQAir ATEM E369572295$54.01
Alen BreatheSmart 75i_V2370574304$55.66
Cuckoo CAC-D2020FW382592316$57.86

*Estimate: ENERGY STAR annual kWh × U.S. average residential rate 18.31¢/kWh (EIA, July 2026 (preliminary)). ENERGY STAR's annual figure assumes 16 hours/day of operation under the DOE test procedure.

Compare this model side by side with any other · All Midea models

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We have not tested this product. Figures are as listed in ENERGY STAR data retrieved 2026-10-17.