KNKA: 7 DOE certified models

Key findings

• Highest certified water removal among its dehumidifiers: KNKA PD30MA-20 at 18.5 pints/day.
• Highest certified smoke CADR among its air purifiers: KNKA APH4000 Pro at 369 cfm.
• Most efficient for its class: KNKA AP250P, CADR/W 5.2, higher than 36 of the 66 in its DOE class (air purifiers, PM2.5 CADR 100 to 149 cfm).

Dehumidifiers

3 KNKA dehumidifiers, listed models first. DOE data as of 2026-11-03.

#	Photo	Model	Labels	Pints/day (2019 test)	IEF, L/kWh	DOE class	Brands	Amazon
1		KNKAPD30MA-20	IEF 1.7 Sold under 2 brands	18.5pints/day, 2019 DOE test	1.7	up to 25	2	Check price on Amazon
2		KNKAPD22SC-12	IEF 1.3 Sold under 2 brands	10pints/day, 2019 DOE test	1.3	up to 25	2	Check price on Amazon
3		KNKAD032-05PtA2/ A1-D	IEF 1.3	5pints/day, 2019 DOE test	1.3	up to 25	1	Check price on Amazon

Air purifiers

4 KNKA air purifiers, listed models first. DOE data as of 2026-11-03.

#	Photo	Model	Labels	Smoke CADR, cfm	Room size	PM2.5 CADR	CADR/W	Brands	Amazon
1		KNKAAPH4000	CADR/W 4.3 Sold under 2 brands	226cfm, 350 sq ft	350 sq ft	226	4.3	2	Check price on Amazon
2		KNKAAPH3000	CADR/W 3.4	153cfm, 237 sq ft	237 sq ft	154	3.4	1	Check price on Amazon
3		KNKAAP250Pfiled as FMUKL APH2500P	CADR/W 5.2 Sold under 2 brands	119cfm, 184 sq ft	184 sq ft	121	5.2	2	Check price on Amazon
4		KNKAAPH4000 Pro	CADR/W 5.6 Sold under 2 brands	369cfm, 572 sq ft	572 sq ft	367	5.6	2

How efficient are KNKA models?

Dehumidifiers

Of the 3 KNKA dehumidifiers, none files a higher IEF than the class median: 1 matches it and 2 fall below it.

Air purifiers

Of the 4 KNKA air purifiers, 2 file a higher CADR/W than the class median and 2 fall below it.

A higher IEF means more water removed per kWh. A higher CADR/W means more clean air per watt.

Who makes KNKA dehumidifiers and air purifiers?

DOE's database has no manufacturer field, so the evidence is whose model number each unit is filed under and which other brands file the same unit.

2 units are filed under KNKA's own model numbers and sold by other brands too, so KNKA is the filer of record for them.

KNKA shares 5 units with 3 other brands. Its other 2 basic models are filed by KNKA alone. Brands it shares with, and how many units each:

• FMUKL2
• KNKA PRO2
• FUMKL1

How much do KNKA models cost to run?

Running nonstop at DOE's test conditions, the 3 KNKA dehumidifiers with both figures use 1.82 to 5.15 kWh a day. That's about 33¢ to 94¢ a day, or $9.91 to $28.05 for 30 days. The lowest is KNKA D032-05PtA2/ A1-D (5 pints/day, IEF 1.3) and the highest KNKA PD30MA-20 (18.5 pints/day, IEF 1.7).

DOE's annual energy figures for the 4 KNKA air purifiers that file one run from 137 to 387 kWh a year: about $24.88 to $70.28 a year. The lowest is KNKA AP250P (119 cfm, CADR/W 5.2) and the highest KNKA APH4000 Pro (369 cfm, CADR/W 5.6).

Real use cycles on and off with the humidity, so the dehumidifier figures are the upper end 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.

Questions about KNKA

Is KNKA a good dehumidifier brand?

How its 3 dehumidifiers compare on efficiency with their DOE class is above. 2 of them are the same unit as another brand's model. We don't test reliability, noise or build quality, so we can't rank brands on those. How we compare models.

Does KNKA make a 50 pint dehumidifier?

No current DOE record shows one as of 2026-11-03. Its largest, KNKA PD30MA-20, certifies 18.5 pints/day under the 2019 DOE test. Boxes that quote the older 80°F test read higher for the same unit. How the 2019 test changed pint ratings.

Which KNKA dehumidifier is the most efficient for its size?

KNKA PD30MA-20, at IEF 1.7: higher than 94 of the 253 in its DOE class (portable dehumidifiers up to 25 pints/day). At the other end are KNKA D032-05PtA2/ A1-D and KNKA PD22SC-12, at IEF 1.3, 2 of the 63 at DOE's 1.30 minimum.

Is KNKA the same as FMUKL?

For 2 units, yes: both file them under the same DOE basic model (APH2500P and APH4000). The other 5 KNKA basic models aren't filed by FMUKL. Compare the 2 brands of APH2500P. Compare the 2 brands of APH4000.