PriestleyP066

Air purifier

DOE certified smoke CADR

31cfmDOE test

Dust 34 · PM2.5 32 cfm

Effective room size 47 sq ft (DOE)

DOE data as of 2026-11-03DOE record

Does it fit your room? How DOE sizes rooms

Priestley P066: certified to DOE with smoke CADR 31 cfm, dust 34, PM2.5 32, effective room size 47 sq ft. DOE data as of 2026-11-03.

Every model number on this record

Filed with DOE under basic model P066. A listing with any of these numbers is this unit.

Every model number filed under basic model P066, DOE data as of 2026-11-03
Model numberFiled by
P066 (DOE basic model)Priestley

How much does the Priestley P066 cost to run?

About 85¢ a month, or $10.17 a year, on DOE's annual energy figure of 56 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 56¢.

How does the Priestley P066 rank in its DOE class?

In its DOE class (air purifiers, PM2.5 CADR 10 to 99 cfm), 42 models have a matched Amazon listing. Its CADR/W of 3 is tied for 27th of the 42, and 10% below their median of 3.35.

DOE's annual energy figure for it is 56 kWh, against their median of 94.5 kWh: $6.99 a year less at the US average price.

Air purifiers (133 with a listing)

Among 90 air purifiers, PM2.5 CADR 10 to 99 cfm

Smoke CADR (cfm)31

Higher than 7 of 90. 8 others share 31.

1993 cfm

Efficiency (CADR/W)3

Higher than 29 of 90. 1 other shares 3.

1.914

Three to compare with

From models with a matched listing.

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

    alrocket DH-JH020US-A0040 smoke CADR

    Room size 62 sq ft, CADR/W 7.1: about 58% less power for the same clean air.

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

    AeroNova MK01A31 smoke CADR

    Room size 48 sq ft, CADR/W 5.4: about 44% less power for the same clean air.

  • Nearest bigger unit

    Dyson HP12 ZZ52 smoke CADR

    Room size 81 sq ft, CADR/W 2.3.

DOE record

Air cleaning

Smoke CADR
31 cfm
Dust CADR
34 cfm
PM2.5 CADR
32 cfm
Effective room size
47 sq ft
Efficiency (IEF)
3 cfm/W
Energy use
56 kWh/year

Record

DOE basic model
P066
DOE class
10 <= PM2.5 Clean Air Delivery Rate < 100
Brands on the filings
1
In DOE's list since
2026-11-02first snapshot we hold

Questions

What room size is it for?
DOE lists an effective room size of 47 sq ft, based on its smoke CADR of 31 cfm: CADR and room size.
How much does the Priestley P066 cost to run for a year?
About $10.17: DOE's annual figure of 56 kWh at 18.16¢/kWh, the US residential average for August 2026 (EIA).