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10 bestEnergy Efficient Window Air Conditionerof September 2025

112M consumers helped this year.

12% off

1

Pro Breeze 4-in-1 Portable Air Conditioner 9000 BTU – Smart Home WiFi Compatible - 24 Hour Timer & Window Venting Kit Included. Powerful Air Conditioning Unit with Class A Energy Efficiency Rating

Pro Breeze 4-in-1 Portable Air Conditioner 9000 BTU – Smart Home WiFi Compatible - 24 Hour Timer & Window Venting Kit Included. Powerful Air Conditioning Unit with Class A Energy Efficiency Rating

Pro Breeze 4-in-1 Portable Air Conditioner 9000 BTU – Smart Home WiFi Compatible - 24 Hour Timer & Window Venting Kit Included. Powerful Air Conditioning Unit with Class A Energy Efficiency Rating

Pro Breeze

10.0

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20% off

2

De'Longhi Pinguino Compact PACES72 Classic Compact Portable 8,300 BTU Air Conditioner, 3 in 1 Air Conditioning Unit, Rooms up to 60m³, A Energy Efficiency, Window Kit Included, Energy Class A, White

De'Longhi Pinguino Compact PACES72 Classic Compact Portable 8,300 BTU Air Conditioner, 3 in 1 Air Conditioning Unit, Rooms up to 60m³, A Energy Efficiency, Window Kit Included, Energy Class A, White

De'Longhi Pinguino Compact PACES72 Classic Compact Portable 8,300 BTU Air Conditioner, 3 in 1 Air Conditioning Unit, Rooms up to 60m³, A Energy Efficiency, Window Kit Included, Energy Class A, White

De'Longhi

10.0

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3

Meaco MeacoCool MC Series 7,000R Portable Air Conditioner - Powerful Portable Air Conditioner, Energy Efficient with Two Window Venting Kits included

Meaco MeacoCool MC Series 7,000R Portable Air Conditioner - Powerful Portable Air Conditioner, Energy Efficient with Two Window Venting Kits included

Meaco MeacoCool MC Series 7,000R Portable Air Conditioner - Powerful Portable Air Conditioner, Energy Efficient with Two Window Venting Kits included

Meaco

9.9

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4

Devola 4-in-1 WiFi Air Conditioning Unit 9000 BTU, Portable Air Conditioner & 28L/day Dehumidifier With 2 Window Kits Included, Smart Air Conditioner With Fan, Cooling, Timer & Dehumidifying Functions

Devola 4-in-1 WiFi Air Conditioning Unit 9000 BTU, Portable Air Conditioner & 28L/day Dehumidifier With 2 Window Kits Included, Smart Air Conditioner With Fan, Cooling, Timer & Dehumidifying Functions

Devola 4-in-1 WiFi Air Conditioning Unit 9000 BTU, Portable Air Conditioner & 28L/day Dehumidifier With 2 Window Kits Included, Smart Air Conditioner With Fan, Cooling, Timer & Dehumidifying Functions

Devola

9.8

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5

Portable Air Conditioning Unit 9000 BTU,2024 Upgraded Fast Cooling&Energy Efficient Powerful Air Conditioners for Room 300Sq. Ft,3-1 Dehumidifier,Fan with 2 Fan Speeds,Smart Display&Remote Control

Portable Air Conditioning Unit 9000 BTU,2024 Upgraded Fast Cooling&Energy Efficient Powerful Air Conditioners for Room 300Sq. Ft,3-1 Dehumidifier,Fan with 2 Fan Speeds,Smart Display&Remote Control

Portable Air Conditioning Unit 9000 BTU,2024 Upgraded Fast Cooling&Energy Efficient Powerful Air Conditioners for Room 300Sq. Ft,3-1 Dehumidifier,Fan with 2 Fan Speeds,Smart Display&Remote Control

Zeroteek

9.6

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OtherRelated productsUp to 7% off

Belaco Portable Air Conditioner, 9000 BTU 4-in-1, Air Conditioning Unit, Fan & Cooling, Dehumidifier, Remote control with 24Hr Timer, Dual Window kit Included with Class A Energy Efficiency Rating

Belaco Portable Air Conditioner, 9000 BTU 4-in-1, Air Conditioning Unit, Fan & Cooling, Dehumidifier, Remote control with 24Hr Timer, Dual Window kit Included with Class A Energy Efficiency Rating

HOMCOM 8000 BTU 4-In-1 Portable Air Conditioner Unit Cooling Dehumidifying Ventilating for Room up to 15m², with Fan, Remote, 24H Timer, Window Mount Kit, R290, A Energy Efficiency

HOMCOM 8000 BTU 4-In-1 Portable Air Conditioner Unit Cooling Dehumidifying Ventilating for Room up to 15m², with Fan, Remote, 24H Timer, Window Mount Kit, R290, A Energy Efficiency

Honeywell 9000 BTU Portable Air Conditioner & 60L Dehumidifier | Energy Efficient 3-in-1 Air Conditioning Unit With 24Hr Timer, Fan, Cooling & Dehumidifying Functions | Covers Up to 22m² (HC09CESAWK)

Honeywell 9000 BTU Portable Air Conditioner & 60L Dehumidifier | Energy Efficient 3-in-1 Air Conditioning Unit With 24Hr Timer, Fan, Cooling & Dehumidifying Functions | Covers Up to 22m² (HC09CESAWK)

EcoAir 6-in-1 Portable Air Conditioner 7000 BTU w Remote Control. Powerful Energy Saving Air Conditioning Energy Efficiency Rating Class A+ | Free Window Seal Kit | Crystal MK2

EcoAir 6-in-1 Portable Air Conditioner 7000 BTU w Remote Control. Powerful Energy Saving Air Conditioning Energy Efficiency Rating Class A+ | Free Window Seal Kit | Crystal MK2

6

Inventor Air Conditioning Unit Chilly, 9000BTU Portable Air Conditioner, 3-1,Dehumidifier,Cooling,Fan,2 Fan Speeds,Energy efficient, 24 hr timer for Rooms 215ft(WEE/MM0449AA)

Inventor Air Conditioning Unit Chilly, 9000BTU Portable Air Conditioner, 3-1,Dehumidifier,Cooling,Fan,2 Fan Speeds,Energy efficient, 24 hr timer for Rooms 215ft(WEE/MM0449AA)

Inventor Air Conditioning Unit Chilly, 9000BTU Portable Air Conditioner, 3-1,Dehumidifier,Cooling,Fan,2 Fan Speeds,Energy efficient, 24 hr timer for Rooms 215ft(WEE/MM0449AA)

Inventor

9.4

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11% off

7

Meaco MeacoCool MC Series 14,000R Portable Air Conditioner - Powerful Portable Air Conditioner, Energy Efficient with Two Window Venting Kits included

Meaco MeacoCool MC Series 14,000R Portable Air Conditioner - Powerful Portable Air Conditioner, Energy Efficient with Two Window Venting Kits included

Meaco MeacoCool MC Series 14,000R Portable Air Conditioner - Powerful Portable Air Conditioner, Energy Efficient with Two Window Venting Kits included

Meaco

9.2

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50% off

8

BLACK+DECKER BXAC40006GB 9000 BTU Portable 3-in-1 Air Conditioner, Dehumidifier, Cooling Fan, LED Display, 2 Fan Speed, 24 Hour Timer, Remote Control, White

BLACK+DECKER BXAC40006GB 9000 BTU Portable 3-in-1 Air Conditioner, Dehumidifier, Cooling Fan, LED Display, 2 Fan Speed, 24 Hour Timer, Remote Control, White

BLACK+DECKER BXAC40006GB 9000 BTU Portable 3-in-1 Air Conditioner, Dehumidifier, Cooling Fan, LED Display, 2 Fan Speed, 24 Hour Timer, Remote Control, White

BLACK + DECKER

9.0

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5% off

9

Pro Breeze 4-in-1 Portable Air Conditioner 7000 BTU with Remote Control, 24 Hour Timer & Dual Window Venting Kit Included. Powerful Air Conditioning Unit with Class A Energy Efficiency Rating

Pro Breeze 4-in-1 Portable Air Conditioner 7000 BTU with Remote Control, 24 Hour Timer & Dual Window Venting Kit Included. Powerful Air Conditioning Unit with Class A Energy Efficiency Rating

Pro Breeze 4-in-1 Portable Air Conditioner 7000 BTU with Remote Control, 24 Hour Timer & Dual Window Venting Kit Included. Powerful Air Conditioning Unit with Class A Energy Efficiency Rating

Pro Breeze

8.8

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10

HOMCOM 12,000 BTU Portable Air Conditioner, 5-in-1 Air Conditioning Unit, Dehumidifier with Remote, LED Display, 2 Speeds, 24H Timer On/Off, Child Lock, Window Venting Kit, 28m², A Energy Efficiency

HOMCOM 12,000 BTU Portable Air Conditioner, 5-in-1 Air Conditioning Unit, Dehumidifier with Remote, LED Display, 2 Speeds, 24H Timer On/Off, Child Lock, Window Venting Kit, 28m², A Energy Efficiency

HOMCOM 12,000 BTU Portable Air Conditioner, 5-in-1 Air Conditioning Unit, Dehumidifier with Remote, LED Display, 2 Speeds, 24H Timer On/Off, Child Lock, Window Venting Kit, 28m², A Energy Efficiency

HOMCOM

8.6

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