LEVOIT: 9 DOE certified models

Key findings

• Highest certified smoke CADR among its air purifiers: LEVOIT LAP-C511S-WUS at 301 cfm.
• Most efficient for its class: LEVOIT LAP-C511S-WUS, CADR/W 9, higher than 134 of the 140 in its DOE class (air purifiers, PM2.5 CADR 150+ cfm).

Dehumidifiers

1 LEVOIT dehumidifier. DOE data as of 2026-11-03.

#	Photo	Model	Labels	Pints/day (2019 test)	IEF, L/kWh	DOE class	Brands	Amazon
1		LEVOITLDH-H251S-WUS	IEF 1.88	24.54pints/day, 2019 DOE test	1.88	up to 25	1	Check price on Amazon

Air purifiers

8 LEVOIT 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		LEVOITLAP-C511S-WUS	CADR/W 9	301cfm, 467 sq ft	467 sq ft	299	9	1	Check price on Amazon
2		LEVOITLAP-C341S-WUSZ	CADR/W 6.5	161cfm, 250 sq ft	250 sq ft	161	6.5	1	Check price on Amazon
3		LEVOITLAP-P501S-WUSR	CADR/W 3.9	148cfm, 229 sq ft	229 sq ft	150	3.9	1	Check price on Amazon
4		LEVOITLAP-P201S-WUS	CADR/W 3.8	143cfm, 222 sq ft	222 sq ft	148	3.8	1	Check price on Amazon
5		LEVOITLAP-V102S-WUS	CADR/W 3.6	143cfm, 222 sq ft	222 sq ft	152	3.6	1	Check price on Amazon
6		LEVOITLAP-B851S-WNA	CADR/W 5.7	85cfm, 132 sq ft	132 sq ft	87	5.7	1	Check price on Amazon
7		LEVOITLAP-C311S-WUSR	CADR/W 7.7	175cfm, 271 sq ft	271 sq ft	176	7.7	1
8		LEVOITLAP-C171-QUSR	CADR/W 5.3	34cfm, 53 sq ft	53 sq ft	37	5.3	1

How efficient are LEVOIT models?

Dehumidifiers

LEVOIT LDH-H251S-WUS files IEF 1.88 L/kWh. The median among the 253 models in its DOE class (portable dehumidifiers up to 25 pints/day) is 1.7, so it's above the median: higher than 210 of the 253.

Air purifiers

Of the 8 LEVOIT air purifiers, 5 file a higher CADR/W than the class median and 3 fall below it.

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

Who makes LEVOIT 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.

None of the 9 LEVOIT basic models is filed by another brand as of 2026-11-03, and none uses another company's model number. DOE's records tie them to LEVOIT alone.

How much do LEVOIT models cost to run?

LEVOIT LDH-H251S-WUS certifies 24.54 pints/day (11.61 liters) at an IEF of 1.88 L/kWh. That takes 6.18 kWh a day running nonstop at DOE's test conditions: about $1.12 a day, or $33.65 for 30 days.

DOE's annual energy figures for the 8 LEVOIT air purifiers that file one run from 39 to 244 kWh a year: about $7.08 to $44.31 a year. The lowest is LEVOIT LAP-C171-QUSR (34 cfm, CADR/W 5.3) and the highest LEVOIT LAP-V102S-WUS (143 cfm, CADR/W 3.6).

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.

Questions about LEVOIT

Is LEVOIT a good dehumidifier brand?

Its one dehumidifier basic model, LEVOIT LDH-H251S-WUS, certifies 24.54 pints/day under the 2019 DOE test, and its IEF of 1.88 is higher than 210 of the 253 in its DOE class (portable dehumidifiers up to 25 pints/day). We don't test reliability, noise or build quality, so we can't rank brands on those. How we compare models.

Does LEVOIT make a 50 pint dehumidifier?

No current DOE record shows one as of 2026-11-03. Its one model, LEVOIT LDH-H251S-WUS, certifies 24.54 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.