Comfort Zone: 4 DOE certified models

Comfort Zone has 4 portable AC basic models certified to DOE as of 2026-11-03, rated 5,100 to 10,200 BTU/h SACC. 4 are the same unit as models filed under other brands. How their efficiency compares with their DOE class is below.

Highest certified cooling capacity among its portable ACs: Comfort Zone CZ-PAC-10K-C/H-WF-6A at 10,200 BTU/h SACC.

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

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Portable air conditioners

4 Comfort Zone portable ACs, listed models first. DOE data as of 2026-11-03.
#	Model	Labels	SACC, BTU/h	Covers	CEER	Hose	Heat	Brands	Amazon
1	Comfort ZoneCZ-PAC-10K-C/H-WF-6Afiled as TCL H10P36W	CEER 7.9 Single hose Sold under 6 brands	10,200SACC, up to 450 sq ft	450 sq ft	7.9	Single hose	No	6	Check price on Amazon
2	Comfort ZoneCZ-PAC-8K-C/H-WF-6Afiled as TCL H8P36W	CEER 7.3 Single hose Sold under 7 brands	8,350SACC, up to 350 sq ft	350 sq ft	7.3	Single hose	No	7	Check price on Amazon
3	Comfort ZoneCZ-PAC-6K-WF-6Afiled as SereneLife SLPAC10	CEER 6.6 Single hose Sold under 4 brands	6,300SACC, up to 250 sq ft	250 sq ft	6.6	Single hose	No	4	Check price on Amazon
4	Comfort ZoneCZ-PAC-5K-WF-6Afiled as DuraComfort DP08CP	CEER 6.1 Single hose Sold under 7 brands	5,100SACC, up to 150 sq ft	150 sq ft	6.1	Single hose	No	7	Check price on Amazon

How efficient are Comfort Zone portable ACs?

Of the 4 Comfort Zone portable ACs, 1 files a higher CEER than the class median, 1 matches it and 2 fall below it.

Comfort Zone portable ACs against the median CEER (Btu/Wh) of their class. DOE data as of 2026-11-03.
Class	Comfort Zone models	Above median	Class median	Best Comfort Zone
Single hose portable ACs (1,044)	4	1	CEER 7.3	CZ-PAC-10K-C/H-WF-6A CEER 7.9

A higher CEER means more cooling per watt.

Who makes Comfort Zone 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.

Comfort Zone shares 4 units with 10 other brands. Brands it shares with, and how many units each:

Comfort Zone units filed under one DOE basic model with other brands. DOE data as of 2026-11-03.
Basic model	Comfort Zone model	Number belongs to	Brands
TAC-05CPD/SL5	CZ-PAC-5K-WF-6A	No known prefix	7
TAC-08CHPD/DM1(LC)	CZ-PAC-8K-C/H-WF-6A	No known prefix	7
TAC-10CHPD/DM1(LC)	CZ-PAC-10K-C/H-WF-6A	No known prefix	6
TAC-06CPD/DL1	CZ-PAC-6K-WF-6A	No known prefix	4

How much does a Comfort Zone portable AC cost to run?

While cooling, Comfort Zone portable ACs draw about 836 to 1,291 W (certified SACC divided by CEER). That's 15¢ to 23¢ an hour, or $36.44 to $56.27 for 30 days at 8 hours a day. The lowest is Comfort Zone CZ-PAC-5K-WF-6A (5,100 BTU/h SACC, CEER 6.1) and the highest Comfort Zone CZ-PAC-10K-C/H-WF-6A (10,200 BTU/h SACC, CEER 7.9).

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 Comfort Zone

Is Comfort Zone a good portable AC brand?: How its 4 portable ACs compare on efficiency with their DOE class is above. 4 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.
How big a room will a Comfort Zone portable AC cool?: Its models certify 5,100 to 10,200 BTU/h SACC, which ENERGY STAR's sizing chart puts at 150 to 450 sq ft. Every one was tested single hose. SACC and the BTU figure on the box.
Which Comfort Zone portable AC is the most efficient for its size?: Comfort Zone CZ-PAC-10K-C/H-WF-6A, at CEER 7.9: higher than 738 of the 1,044 single hose portable ACs certified to DOE. At the other end is Comfort Zone CZ-PAC-5K-WF-6A, at CEER 6.1, higher than 7 of the 1,044 in its class.
Is Comfort Zone the same as DuraComfort?: For 4 units, yes: both file them under the same DOE basic model (TAC-05CPD/SL5, TAC-06CPD/DL1, TAC-08CHPD/DM1(LC) and TAC-10CHPD/DM1(LC)).