Air Purifier CADR Check

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Rainbow Luggable XXL: CADR, room size and running cost

Smoke CADR 306 cfm · Room size 474 sq ft (ENERGY STAR) · 75 kWh/yr ≈ $13.73/yr electricity (estimate)

Certified specs

Smoke CADR306 cfm
Dust CADR358 cfm
Pollen CADR436 cfm
PM2.5 CADR330 cfm
ENERGY STAR effective room size474 sq ft (1.55 × smoke CADR, per 10 CFR 429.68)
Annual energy use75 kWh/yr
Integrated energy factor25.8 cfm/W
Smoke CADR per watt23.91 cfm/W
Ozone emissions (reported)0 ppb
TechnologyFan and Filter
Filter types listedHEPA-Type
Automatic modeNone
Connected (app/Wi-Fi)No
ENERGY STAR Most EfficientYes
MarketsUnited States
Date certified2025-05-12
ENERGY STAR partnerRainbow Purifiers, LLC
SourceENERGY STAR record 4020924 · 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 ft22.920.4Meets AHAM 2/3 rule
150 sq ft15.313.6Meets AHAM 2/3 rule
200 sq ft11.510.2Meets AHAM 2/3 rule
300 sq ft7.76.8Meets AHAM 2/3 rule
400 sq ft5.75.1Meets AHAM 2/3 rule
500 sq ft4.64.1Below AHAM 2/3 rule
700 sq ft3.32.9Below 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 459 sq ft.

Estimated yearly electricity cost

WhereResidential ratePer yearPer month
Louisiana12.72¢$9.54$0.79
U.S. average18.31¢$13.73$1.14
California33.61¢$25.21$2.10
Hawaii48.00¢$36.00$3.00

Estimate = 75 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.

On battery during an outage (estimate): 75 kWh ÷ 5,840 active hours ≈ 13 W average, which runs slightly high because the annual figure includes standby. A 1,024 Wh portable power station at an assumed 85% inverter efficiency would run it about 68 h. Top fan speed can draw more. Try other stations in the runtime calculator on our power station site.

Similar CADR from other brands

ModelSmoke CADR (cfm)ENERGY STAR room size (sq ft)Energy use (kWh/yr)Est. electricity/yr*
Blueair 4412311000321498181$33.14
Blueair 3332111100283439193$35.34
Levoit LAP-C511S-WUS301467194$35.52
Midea 793K20A303470218$39.92
Midea US-KJ500G-TB32303470218$39.92
Blueair 3432111100339525227$41.56
Midea CAF-Z85US312484259$47.42
Winix T810270419259$47.42

*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 Rainbow models

See Rainbow air purifiers on the manufacturer's site (plain link, not an affiliate link)

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