Winix AT40 vs Winix T810
Two of the large-room air purifiers in our best large-room air purifiers: coway, blueair, levoit, winix, iqair & more comparison, lined up spec by spec. Every figure comes from the manufacturer pages linked below, and the scores use the same published formula as the full ranking.
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Best for: An Energy Star 265 CFM purifier
Check price at AmazonBest for: A 272 CFM tower with a numeric air display
Check price at AmazonSpec-by-spec comparison
Green marks the better published figure. "Not listed" means the manufacturer doesn't publish it.
| Spec | Winix AT40 | Winix T810 | Weight |
|---|---|---|---|
| Smoke CADRSmoke is the hardest of the three AHAM CADR tests, so we use it when listed. Levoit lists one headline CADR, and we use that. Shark, Honeywell, Molekule and IQAir don't publish an AHAM CADR, so those cells are blank and score at the lowest published value in the category. | 265 CFM | 272 CFM | 40% |
| CADR per wattComputed by us: smoke CADR divided by the maker's rated or maximum power. Higher means more clean air for the electricity, which matters for a machine that runs all day. | Not listed | Not listed | 15% |
| Quietest settingThe lowest listed noise level, usually sleep mode. Makers measure at different distances, so treat differences of 1–2 dB as a tie. | 22.04 dB | 23.8 dB | 10% |
| Loudest settingNoise at top speed, which is what you hear when you run it hard for smoke or cooking. Left blank when the maker lists only the minimum. | Not listed | Not listed | 10% |
| Carbon or odor stage includedYes when the filter in the box includes an activated-carbon or deodorization stage, per the maker. HEPA alone traps particles but not odors or gases. | Yes | Yes | 10% |
| Main filter lifeThe maker's 'up to' figure for the main HEPA filter. Makers assume different daily run times (noted on each product), so this is a rough guide to running costs. | 12 months | 12 months | 15% |
| CADR (dust / pollen / smoke) | 259 / 244 / 265 | 265 / 267 / 272 | info |
| AHAM room size | 410 ft² | 418 ft² | info |
| Maximum coverage | 1,968 ft² (1 ACH) | 2,006 ft² (1 ACH) | info |
| Filter | 4-stage: True HEPA + activated carbon | 4-stage: True HEPA + activated carbon | info |
| Filter life | HEPA 12 months; carbon 12 months | HEPA 12 months; carbon 12 months | info |
| Minimum noise | 22.04 dB | 23.8 dB | info |
| Certifications | AHAM, Energy Star, UL, CARB | Not listed | info |
| Weight | 10.2 lb | 10.2 lb | info |
| Smart | Not listed | Wi-Fi, Alexa, Google Home | info |
| AirPick score | 3.5/10 | 3.5/10 | 100% |
Where each one comes out ahead
Winix AT40
Better published figure on: Quietest setting.
What we like
- Energy Star certified
- 22 dB minimum
Watch out for
- Power not listed
Winix T810
Better published figure on: Smoke CADR.
What we like
- 272 CFM at 10.2 lb
- Carbon rated 12 months
Watch out for
- Power not listed
Verdict
Close siblings: 272 vs 265 CFM smoke, both 10.2 lb with 12-month HEPA and carbon. AT40 is Energy Star certified and lists 22 vs 23.8 dB minimum noise.
- Winix AT40: Winix: AT40
- Winix T810: Winix: T810