LEMBERI: 2 DOE certified models

LEMBERI has 2 portable AC basic models certified to DOE as of 2026-11-03, rated 5,000 to 6,000 BTU/h SACC. How their efficiency compares with their DOE class is below.

Highest certified cooling capacity among its portable ACs: LEMBERI 10K-PAC-WHT at 6,000 BTU/h SACC.

Source: DOE Compliance Certification Database (portable ACs), data as of 2026-11-03.

Portable air conditioners

2 LEMBERI portable ACs. DOE data as of 2026-11-03.
#	Photo	Model	Labels	SACC, BTU/h	Covers	CEER	Hose	Heat	Brands
1		LEMBERI10K-PAC-WHT	CEER 6.6 Single hose	6,000SACC, up to 250 sq ft	250 sq ft	6.6	Single hose	No	1
2		LEMBERI8K-PAC-WHT	CEER 6.2 Single hose	5,000SACC, up to 150 sq ft	150 sq ft	6.2	Single hose	No	1

How efficient are LEMBERI portable ACs?

Of the 2 LEMBERI portable ACs, none files a higher CEER than the class median: 2 fall below it.

LEMBERI portable ACs against the median CEER (Btu/Wh) of their class. DOE data as of 2026-11-03.
Class	LEMBERI models	Above median	Class median	Best LEMBERI
Single hose portable ACs (1,044)	2	0	CEER 7.3	10K-PAC-WHT CEER 6.6

A higher CEER means more cooling per watt.

Who makes LEMBERI portable ACs?

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 2 LEMBERI 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 LEMBERI alone.

How much does a LEMBERI portable AC cost to run?

While cooling, LEMBERI portable ACs draw about 806 to 909 W (certified SACC divided by CEER). That's 15¢ to 17¢ an hour, or $35.15 to $39.62 for 30 days at 8 hours a day. The lowest is LEMBERI 8K-PAC-WHT (5,000 BTU/h SACC, CEER 6.2) and the highest LEMBERI 10K-PAC-WHT (6,000 BTU/h SACC, CEER 6.6).

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.

How does LEMBERI 10K-PAC-WHT compare with other brands?

Picked by rule from models with a matched listing, DOE data as of 2026-11-03.

Within 1,000 BTU/h of its size, highest CEER: Antarctic Star AC7290-10K, 5,500 BTU/h SACC. Up to 150 sq ft, single hose, CEER 7.9: about 16% less power for the same cooling.
Nearest size in its class with a higher CEER: BLACK+DECKER BPP06WTB, 6,000 BTU/h SACC. Up to 250 sq ft, single hose, CEER 7.3: about 10% less power for the same cooling.
Nearest bigger unit: Hisense AP0722CW1W, 7,100 BTU/h SACC. Up to 300 sq ft, single hose, CEER 7.2.

Questions about LEMBERI

Is LEMBERI a good portable AC brand?: How its 2 portable ACs compare on efficiency with their DOE class is above. Both are filed under LEMBERI alone. We don't test reliability, noise or build quality, so we can't rank brands on those. How we compare models.
How big a room will a LEMBERI portable AC cool?: Its models certify 5,000 to 6,000 BTU/h SACC, which ENERGY STAR's sizing chart puts at 150 to 250 sq ft. Every one was tested single hose. SACC and the BTU figure on the box.
Which LEMBERI portable AC is the most efficient for its size?: LEMBERI 10K-PAC-WHT, at CEER 6.6: higher than 139 of the 1,044 single hose portable ACs certified to DOE. At the other end is LEMBERI 8K-PAC-WHT, at CEER 6.2, higher than 48 of the 1,044 in its class.