One unit, 2 brandsEP-KJTS01-140-25W

Sold as

• LONGSTAR

  EP-KJTS01-140-25W

  148 cfm

  No Amazon listing matched as of 2026-11-03.

• 

  Maxlite

  AP215SF4B

  148 cfm

  Check price on Amazon

The filings

DOE lists 2 individual model numbers under basic model EP-KJTS01-140-25W, filed under 2 brand names. Every filing lists the same figures: smoke CADR 148 cfm, PM2.5 CADR 154 cfm and a 229 sq ft room size.

How we know it's one unit

Every brand here filed its model numbers under the same DOE basic model, EP-KJTS01-140-25W. 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. LONGSTAR files EP-KJTS01-140-25W itself as one of its model numbers. The other brand files under it with its own numbers.

Brands may still differ in color, controls, accessories, warranty and support. Full record and every model number: LONGSTAR EP-KJTS01-140-25W.

How much does the EP-KJTS01-140-25W cost to run?

DOE's record lists 144 kWh a year, the annual energy figure from DOE's test. That's about $26.15 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 140 air purifiers, PM2.5 CADR 150+ cfm

Who makes the EP-KJTS01-140-25W, and is it the same under every brand?

Who makes the Maxlite AP215SF4B?

The Maxlite AP215SF4B is filed with DOE under basic model EP-KJTS01-140-25W, which is LONGSTAR's own model number. That makes LONGSTAR the filer of record, though DOE's database has no manufacturer field to say who builds it.

Is the Maxlite AP215SF4B the same as the LONGSTAR EP-KJTS01-140-25W?

Yes, by DOE's records. Both are filed under basic model EP-KJTS01-140-25W and list the same certified figures: smoke CADR 148 cfm, PM2.5 CADR 154 cfm and a 229 sq ft room size.

Which brand of EP-KJTS01-140-25W is cheapest to run?

They tie: every brand files smoke CADR 148 cfm, PM2.5 CADR 154 cfm and a 229 sq ft room size, so each costs about $26.15 a year to run.