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

W Air Purifiers · Coway Airmega

W (Coway Airmega, ENERGY STAR Certified) uses 197 kWh per year, an estimated $33.49/yr to run, ranking 61st cheapest of 80 sampled air purifiers, 35% above the $24.82/yr median of the 80 sampled models.

Certification: ENERGY STAR Certified

Est. annual energy cost
$33.49/yr
Cheaper than all but 75% of sampled models in this category
Annual energy use: 197 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 category61st of 80
Cost percentilebottom 75%
Vs category median35% above ($24.82/yr)
Rank within same status38th 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 partnerCoway Co., Ltd.
room size sq ft395
dust free clean air delivery259.0
smoke free clean air delivery255.0
pollen free clean air delivery293.0
dust free clean air delivery rate cfm w7.73
smoke free clean air delivery rate cfm w7.52
pollen free clean air delivery rate cfm w8.62
pm25 cadr257.0
integrated energy factor cfm w7.6
annual energy use kwh yr197.00
technology typesFan and Filter
ozone emissions ppb0.00
filter 1 typeHEPA-Type
connected capableNo
connects usingNone

Similar models in this category

Closest capacity first (at most two rows per identical cost).
ModelCertificationEst. energy cost
W ENERGY STAR Certified$33.49/yr
AP-1526D ENERGY STAR Certified$33.49/yr
AP-1125G ENERGY STAR Certified$33.15/yr
AP-1125G ENERGY STAR Certified$33.15/yr
LAP-C511S-WUS ENERGY STAR Most Efficient$32.98/yr

Frequently asked questions

How much does it cost to run the Coway Airmega W per year?

The Coway Airmega W is certified at 197 kWh per year, which works out to about $33.49/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 Coway Airmega W efficient compared with other air purifiers?

Among the 80 air purifiers compared on this site, the Coway Airmega W ranks 61st cheapest to run and sits in the bottom 75% of the cost range. That is 35% 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 Coway Airmega W hold?

The Coway Airmega W 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 Coway Airmega W ranks 38th 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)