SharpKCP70UW

Does it fit your room? How DOE sizes rooms

• 200 sq ft Fits
• 300 sq ft Fits
• 500 sq ftRated 396 sq ft
• 1,000 sq ftRated 396 sq ft

Every model number on this record

Filed with DOE under basic model KCP70UW. A listing with any of these numbers is this unit.

How much does the Sharp KCP70UW cost to run?

About $3.40 a month, or $40.86 a year, on DOE's annual energy figure of 225 kWh.

Electricity at 18.16¢/kWh, the US residential average for August 2026 (EIA Electric Power Monthly, table 5.6.A). Each 1¢/kWh you pay above or below 18.16¢ moves the yearly figure by $2.25.

How does the Sharp KCP70UW rank in its DOE class?

In its DOE class (air purifiers, PM2.5 CADR 150+ cfm), 63 models have a matched Amazon listing. Its CADR/W of 6.7 is 12th of the 63, and 34% above their median of 5.

DOE's annual energy figure for it is 225 kWh, against their median of 266 kWh: $7.45 a year less at the US average price.

Among 140 air purifiers, PM2.5 CADR 150+ cfm

Three to compare with

From models with a matched listing.

• Within 20 cfm of its size, highest CADR/W

  Coway AP-1526D255 smoke CADR

  Room size 395 sq ft, CADR/W 7.6: about 12% less power for the same clean air.

• Nearest size in its class with a higher CADR/W

  Honeywell HPA6000B257 smoke CADR

  Room size 398 sq ft, CADR/W 7.3: about 8% less power for the same clean air.

• Nearest bigger unit

  Blueair 3332111100283 smoke CADR

  Room size 439 sq ft, CADR/W 8.4.

DOE record

Questions

What room size is it for?

DOE lists an effective room size of 396 sq ft, based on its smoke CADR of 255 cfm: CADR and room size.

How much does the Sharp KCP70UW cost to run for a year?

About $40.86: DOE's annual figure of 225 kWh at 18.16¢/kWh, the US residential average for August 2026 (EIA).