One unit, 3 brandsOL09-D031GGN2B1/FE

Mountman OL09-D031GGN2B1/FE = KEGIAN OL09-D031GGN2B1/FE · Dehumidifier filed by KEGIAN and 2 other brands

DOE certified water removal, every brand

9pints/day2019 DOE test

IEF 1.92 L/kWh

9 pints/day under every nameChoose on price, warranty and what's in stock.

DOE data as of 2026-11-03DOE record

OL09-D031GGN2B1/FE (KEGIAN, Mountman and Uthfy): all filed with DOE under one basic model, OL09-D031GGN2B1/FE, certified at 9 pints/day (2019 DOE test). DOE data as of 2026-11-03.

Sold as

  • KEGIAN

    OL09-D031GGN2B1/FE

    9 pints/day

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

  • Mountman

    OL09-D031GGN2B1/FE

    9 pints/day

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

  • Uthfy

    OL09-D031GGN2B1/FE

    9 pints/day

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

The filings

DOE lists one individual model number, OL09-D031GGN2B1/FE, under basic model OL09-D031GGN2B1/FE, filed under 3 brand names. Every filing lists the same figures: 9 pints/day and IEF 1.92.

Each brand's DOE filing under basic model OL09-D031GGN2B1/FE, DOE data as of 2026-11-03. Identical columns are the evidence.
BrandModel numbersPints/dayIEFListing
KEGIANOL09-D031GGN2B1/FE91.92None matched
MountmanOL09-D031GGN2B1/FE91.92None matched
UthfyOL09-D031GGN2B1/FE91.92None matched

How we know it's one unit

Every brand here filed its model numbers under the same DOE basic model, OL09-D031GGN2B1/FE. 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. All 3 brands file OL09-D031GGN2B1/FE 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: KEGIAN OL09-D031GGN2B1/FE.

How much does the OL09-D031GGN2B1/FE cost to run?

9 pints/day at an IEF of 1.92 L/kWh takes 2.22 kWh a day running nonstop at DOE's test conditions: about 40¢ a day, or $12.08 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.

Water removal (pints/day)9

Higher than 58 of 253. 16 others share 9.

4.9524.99 pints/day

Efficiency (IEF, L/kWh)1.92

Higher than 237 of 253. 12 others share 1.92.

1.32.05

Who makes the OL09-D031GGN2B1/FE, and is it the same under every brand?

Who makes the Mountman OL09-D031GGN2B1/FE?
DOE's records don't say. The Mountman OL09-D031GGN2B1/FE is filed under basic model OL09-D031GGN2B1/FE along with 2 other brands. All of them file that same number as their model, and DOE's database has no manufacturer field.
Is the Mountman OL09-D031GGN2B1/FE the same as the KEGIAN OL09-D031GGN2B1/FE?
Yes, by DOE's records. Both are filed under basic model OL09-D031GGN2B1/FE and list the same certified figures: 9 pints/day and IEF 1.92.
Which brand of OL09-D031GGN2B1/FE is cheapest to run?
They tie: every brand files 9 pints/day and IEF 1.92, so each costs about 40¢ a day to run nonstop at DOE's test conditions.

Related units, shared brands

More: all units sold under several brands · all dehumidifiers