Appliance Energy Cost Index Model-level energy use and running cost, from ENERGY STAR certified product data

AT40 Air Purifiers · Winix

AT40 (Winix, ENERGY STAR Certified) uses 272.02 kWh per year, an estimated $46.24/yr to run, ranking 66th cheapest of 80 sampled air purifiers, 86% above the $24.82/yr median of the 80 sampled models.

Certification: ENERGY STAR Certified

Est. annual energy cost
$46.24/yr
Cheaper than all but 81% of sampled models in this category
Annual energy use: 272.02 kWh
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Where this model sits (computed from source data)

Figures above are computed at build time from the sampled source records - no external estimates are used.
Cost rank in category66th of 80
Cost percentilebottom 81%
Vs category median86% above ($24.82/yr)
Rank within same status43rd of 57 (Median $27.54/yr)
Category low to high$5.10/yr ~ $67.35/yr

Certified specifications (as reported)

Specifications exactly as reported in the certified dataset.
SpecValue
energy star partnerWINIX Inc.
additional model informationAT41
room size sq ft411
dust free clean air delivery259.0
smoke free clean air delivery265.0
pollen free clean air delivery244.0
dust free clean air delivery rate cfm w5.64
smoke free clean air delivery rate cfm w5.72
pollen free clean air delivery rate cfm w5.29
pm25 cadr261.0
integrated energy factor cfm w5.6
annual energy use kwh yr272.02
technology typesFan and Filter
ozone emissions ppb0.00
filter 1 typeHEPA-Type
connected capableYes

Similar models in this category

Closest capacity first (at most two rows per identical cost).
ModelCertificationEst. energy cost
DR-HAP003S ENERGY STAR Certified$47.94/yr
DR-HAP003S ENERGY STAR Certified$47.94/yr
47901 ENERGY STAR Certified$43.86/yr
MA-50-V3.0 ENERGY STAR Certified$42.84/yr
KJ500G-L1 ENERGY STAR Certified$50.83/yr

Frequently asked questions

How much does it cost to run the Winix AT40 per year?

The Winix AT40 is certified at 272.02 kWh per year, which works out to about $46.24/yr at the flat rate assumed on this site. Certified figures come from standardized test procedures, so your actual bill varies with usage and your local electricity rate.

Is the Winix AT40 efficient compared with other air purifiers?

Among the 80 air purifiers compared on this site, the Winix AT40 ranks 66th cheapest to run and sits in the bottom 81% of the cost range. That is 86% above the category median of $24.82/yr. The cheapest sampled model runs at $5.10/yr and the most expensive at $67.35/yr.

What ENERGY STAR status does the Winix AT40 hold?

The Winix AT40 is listed as ENERGY STAR Certified. Among the 57 sampled air purifiers with that status the median running cost is $27.54/yr, and the Winix AT40 ranks 43rd cheapest within that group. Certification status reflects efficiency relative to product class, not absolute energy use.

Quick electricity cost calculator

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Simple estimate, 30 days per month (assuming $0.17/kWh)