Air Purifier CADR Check

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Winix T810: CADR, room size and running cost

Smoke CADR 270 cfm · Room size 419 sq ft (ENERGY STAR) · 259 kWh/yr ≈ $47.42/yr electricity (estimate)

Certified specs

Smoke CADR270 cfm
Dust CADR272 cfm
Pollen CADR277 cfm
PM2.5 CADR271 cfm
ENERGY STAR effective room size419 sq ft (1.55 × smoke CADR, per 10 CFR 429.68)
Annual energy use259 kWh/yr
Integrated energy factor6.1 cfm/W
Smoke CADR per watt6.14 cfm/W
Ozone emissions (reported)1.35 ppb
TechnologyFan and Filter, PlasmaWave
Filter types listedHEPA
Automatic modeAir Quality Sensor
Connected (app/Wi-Fi)Yes (Wi-Fi)
ENERGY STAR Most EfficientNo
MarketsUnited States, Canada
Date certified2023-06-20
ENERGY STAR partnerWINIX Inc.
Other model numbers ENERGY STAR lists as equivalentT820; T830
SourceENERGY STAR record 4514026 · Product Finder page

Note: ENERGY STAR lists this model's technology as "Fan and Filter, PlasmaWave". Its reported ozone emissions are 1.35 ppb. See ionizers and ozone.

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 ft20.218.0Meets AHAM 2/3 rule
150 sq ft13.512.0Meets AHAM 2/3 rule
200 sq ft10.19.0Meets AHAM 2/3 rule
300 sq ft6.86.0Meets AHAM 2/3 rule
400 sq ft5.14.5Meets AHAM 2/3 rule
500 sq ft4.03.6Below AHAM 2/3 rule
700 sq ft2.92.6Below 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 405 sq ft.

Estimated yearly electricity cost

WhereResidential ratePer yearPer month
Louisiana12.72¢$32.94$2.75
U.S. average18.31¢$47.42$3.95
California33.61¢$87.05$7.25
Hawaii48.00¢$124.32$10.36

Estimate = 259 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*
Blueair 3431101000244378182$33.32
Blueair 3332111100283439193$35.34
Levoit LAP-C511S-WUS301467194$35.52
Coway AP-1526D (Airmega Halo)255395197$36.07
Honeywell HPA6000B257398207$37.90
Frigidaire FHAP2040A1240372213$39.00
Coway AP-1523D255395219$40.10
Sharp KCP70UW255395225$41.20

*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 Winix models

See Winix 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.