One unit, 2 brandsK250F-D

Purivortex K250F-D = COOLTURE K250F-D · Air purifier filed by COOLTURE and 1 other brand

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DOE certified smoke CADR, every brand

130cfmDOE test

Dust 140 · PM2.5 135 cfm

130 cfm under every nameChoose on price, warranty and what's in stock.

DOE data as of 2026-11-03DOE record

K250F-D (COOLTURE and Purivortex): all filed with DOE under one basic model, K250F-D, certified at 130 cfm. DOE data as of 2026-11-03.

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The filings

DOE lists 2 individual model numbers under basic model K250F-D, filed under 2 brand names. Every filing lists the same figures: smoke CADR 130 cfm, PM2.5 CADR 135 cfm and a 202 sq ft room size.

Each brand's DOE filing under basic model K250F-D, DOE data as of 2026-11-03. Identical columns are the evidence.
BrandModel numbersSmoke CADRCADR/WRoom size, sq ftListing
COOLTUREK250F-D, PX7001303.8202None matched
PurivortexK250F-D, PX7001303.8202Check price on Amazon

How we know it's one unit

Every brand here filed its model numbers under the same DOE basic model, K250F-D. DOE's definition of a basic model (10 CFR 430.2) covers "all units of a given type of covered product (or class thereof) manufactured by one manufacturer" with "the same primary energy source" and nearly identical "electrical, physical, and functional (or hydraulic) characteristics that affect energy consumption, energy efficiency, water consumption, or water efficiency." So one set of DOE figures covers every name on the list. Both brands file K250F-D itself as their model number, so the number alone doesn't say which of them builds it.

Brands may still differ in color, controls, accessories, warranty and support. Full record and every model number: COOLTURE K250F-D.

How much does the K250F-D cost to run?

DOE's record lists 208 kWh a year, the annual energy figure from DOE's test. That's about $37.77 a year.

At 18.16¢ per kWh, the US average residential price for August 2026 (EIA Electric Power Monthly, table 5.6.A). Worked out from the certified figures.

Among 66 air purifiers, PM2.5 CADR 100 to 149 cfm

Smoke CADR (cfm)130

Higher than 35 of 66. 3 others share 130.

93145 cfm

Efficiency (CADR/W)3.8

Higher than 19 of 66. 4 others share 3.8.

2.49.1

Who makes the K250F-D, and is it the same under every brand?

Who makes the Purivortex K250F-D?
DOE's records don't say. The Purivortex K250F-D is filed under basic model K250F-D along with the COOLTURE K250F-D. Both brands file that same number as their model, and DOE's database has no manufacturer field.
Is the Purivortex K250F-D the same as the COOLTURE K250F-D?
Yes, by DOE's records. Both are filed under basic model K250F-D and list the same certified figures: smoke CADR 130 cfm, PM2.5 CADR 135 cfm and a 202 sq ft room size.
Which brand of K250F-D is cheapest to run?
They tie: every brand files smoke CADR 130 cfm, PM2.5 CADR 135 cfm and a 202 sq ft room size, so each costs about $37.77 a year to run.

Related units, shared brands

More: all units sold under several brands · all air purifiers