One unit, 2 brandsPD21MB-20

Sold as

• 

  BEHOME

  PD21MB-20

  16 pints/day

  Check price on Amazon
• HBN

  PD21MB-20

  16 pints/day

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

The filings

DOE lists one individual model number, PD21MB-20, under basic model PD21MB-20, filed under 2 brand names. Every filing lists the same figures: 16 pints/day and IEF 1.85.

How we know it's one unit

Every brand here filed its model numbers under the same DOE basic model, PD21MB-20. 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 PD21MB-20 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: BEHOME PD21MB-20.

How much does the PD21MB-20 cost to run?

16 pints/day at an IEF of 1.85 L/kWh takes 4.09 kWh a day running nonstop at DOE's test conditions: about 74¢ a day, or $22.30 for 30 days. Real use cycles on and off with the humidity, so that's the upper figure for a day of nonstop running.

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 253 portable dehumidifiers up to 25 pints/day

Not counting 1 flagged filing far outside the class.

Who makes the PD21MB-20, and is it the same under every brand?

Who makes the HBN PD21MB-20?

DOE's records don't say. The HBN PD21MB-20 is filed under basic model PD21MB-20 along with the BEHOME PD21MB-20. Both brands file that same number as their model, and DOE's database has no manufacturer field.

Is the HBN PD21MB-20 the same as the BEHOME PD21MB-20?

Yes, by DOE's records. Both are filed under basic model PD21MB-20 and list the same certified figures: 16 pints/day and IEF 1.85.

Which brand of PD21MB-20 is cheapest to run?

They tie: every brand files 16 pints/day and IEF 1.85, so each costs about 74¢ a day to run nonstop at DOE's test conditions.

Related units, shared brands

• BEHOME FDD25-5259BV1R5 (2 brands)