One unit, 4 brandsYDY-80

KESNOS 1 = Fehom YDY-80 · Dehumidifier filed by Fehom and 3 other brands

DOE certified water removal, every brand

24.5pints/day2019 DOE test

IEF 1.42 L/kWh

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

DOE data as of 2026-11-03DOE record

1 (Fehom, KESNOS, waykar and YAUFEY): all filed with DOE under one basic model, YDY-80, certified at 24.5 pints/day (2019 DOE test). DOE data as of 2026-11-03.

Sold as

  • 24.5 pints/day

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

  • 24.5 pints/day

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

  • 24.5 pints/day

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

  • 24.5 pints/day

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

The filings

DOE lists one individual model number, 1, under basic model YDY-80, filed under 4 brand names. Every filing lists the same figures: 24.5 pints/day and IEF 1.42.

Each brand's DOE filing under basic model YDY-80, DOE data as of 2026-11-03. Identical columns are the evidence.
BrandModel numbersPints/dayIEFListing
Fehom124.51.42None matched
KESNOS124.51.42None matched
waykar124.51.42None matched
YAUFEY124.51.42None matched

How we know it's one unit

Every brand here filed its model numbers under the same DOE basic model, YDY-80. 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. No brand files YDY-80 itself as a model number. It's the code DOE uses to tie their filings together.

Brands may still differ in color, controls, accessories, warranty and support. Full record and every model number: Fehom YDY-80.

How much does the YDY-80 cost to run?

24.5 pints/day at an IEF of 1.42 L/kWh takes 8.16 kWh a day running nonstop at DOE's test conditions: about $1.48 a day, or $44.48 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)24.5

Higher than 221 of 253. 5 others share 24.5.

4.9524.99 pints/day

Efficiency (IEF, L/kWh)1.42

Higher than 84 of 253. 4 others share 1.42.

1.32.05

Who makes the YDY-80, and is it the same under every brand?

Who makes the KESNOS 1?
DOE's records don't say. The KESNOS 1 is filed under basic model YDY-80 along with 3 other brands. No brand files YDY-80 itself as a model number, and DOE's database has no manufacturer field.
Is the KESNOS 1 the same as the Fehom 1?
Yes, by DOE's records. Both are filed under basic model YDY-80 and list the same certified figures: 24.5 pints/day and IEF 1.42.
Which brand of YDY-80 is cheapest to run?
They tie: every brand files 24.5 pints/day and IEF 1.42, so each costs about $1.48 a day to run nonstop at DOE's test conditions.

Related units, shared brands

More: all units sold under several brands · all dehumidifiers