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

10.0
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

10.0
3

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

9.9
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

9.8
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
Zeroteek

9.6
OtherUp to 7% off
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

9.4
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

9.2
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

9.0
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

8.8
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

8.6

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