SAP2V1 (Windmill, ENERGY STAR Certified) uses 132 kWh per year, an estimated $22.44/yr to run, ranking 32nd cheapest of 80 sampled air purifiers, 10% below the $24.82/yr median of the 80 sampled models.
Certification: ENERGY STAR Certified
SAP2V1
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| Cost rank in category | 32nd of 80 |
| Cost percentile | bottom 39% |
| Vs category median | 10% below ($24.82/yr) |
| Rank within same status | 12th of 57 (Median $27.54/yr) |
| Category low to high | $5.10/yr ~ $67.35/yr |
| Spec | Value |
|---|---|
| energy star partner | The Air Lab Inc. d/b/a Windmill |
| additional model information | SAP1V1; SAP3V1; SAP4V1; SAP5V1; SAP6V1 |
| room size sq ft | 202 |
| dust free clean air delivery | 159.0 |
| smoke free clean air delivery | 130.0 |
| pollen free clean air delivery | 177.0 |
| dust free clean air delivery rate cfm w | 7.13 |
| smoke free clean air delivery rate cfm w | 5.8 |
| pollen free clean air delivery rate cfm w | 7.80 |
| pm25 cadr | 143.0 |
| integrated energy factor cfm w | 6.4 |
| annual energy use kwh yr | 132.00 |
| technology types | Fan and Filter |
| ozone emissions ppb | 0.00 |
| filter 1 type | HEPA-Type |
| connected capable | Yes |
| Model | Certification | Est. energy cost |
|---|---|---|
| LAP-C311S-WUSR | ENERGY STAR Certified | $22.44/yr |
| 200004-2 | ENERGY STAR Certified | $22.44/yr |
| G-Pure1-22W | ENERGY STAR Certified | $21.93/yr |
| HPA4200B | ENERGY STAR Certified | $23.29/yr |
| E210A | ENERGY STAR Certified | $21.59/yr |
The Windmill SAP2V1 is certified at 132 kWh per year, which works out to about $22.44/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.
Among the 80 air purifiers compared on this site, the Windmill SAP2V1 ranks 32nd cheapest to run and sits in the bottom 39% of the cost range. That is 10% below the category median of $24.82/yr. The cheapest sampled model runs at $5.10/yr and the most expensive at $67.35/yr.
The Windmill SAP2V1 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 Windmill SAP2V1 ranks 12th cheapest within that group. Certification status reflects efficiency relative to product class, not absolute energy use.
Simple estimate, 30 days per month (assuming $0.17/kWh)