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10 bestCostco Window Air Conditionerof December 2025

112M consumers helped this year.

1

Pro Breeze® 12000 BTU Portable Air Conditioner - Smart Home WiFi Compatible with 24-Hour Digital Timer, Smart Display & Window Venting Kit Included - Air Conditioning Unit for Home & Office

Pro Breeze® 12000 BTU Portable Air Conditioner - Smart Home WiFi Compatible with 24-Hour Digital Timer, Smart Display & Window Venting Kit Included - Air Conditioning Unit for Home & Office

Pro Breeze® 12000 BTU Portable Air Conditioner - Smart Home WiFi Compatible with 24-Hour Digital Timer, Smart Display & Window Venting Kit Included - Air Conditioning Unit for Home & Office

Pro Breeze

9.8

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14% off

2

Air Conditioning Unit Portable Air Conditioner 9000 BTU 4-in-1 Dehumidifier, Cooling Fan with 2 Speeds, Digital Display & Remote Control, Window Kit, 24 Hour Timer for Room Up to 269sq.ft

Air Conditioning Unit Portable Air Conditioner 9000 BTU 4-in-1 Dehumidifier, Cooling Fan with 2 Speeds, Digital Display & Remote Control, Window Kit, 24 Hour Timer for Room Up to 269sq.ft

Air Conditioning Unit Portable Air Conditioner 9000 BTU 4-in-1 Dehumidifier, Cooling Fan with 2 Speeds, Digital Display & Remote Control, Window Kit, 24 Hour Timer for Room Up to 269sq.ft

KGOGO

9.6

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3

Maxesla Portable Air Conditioning Unit, 4 in 1 Portable Air Conditioner 14000BTU with Sleep Mode, Cooling, Dehumidifier and Fan with 3 Speed, Air Conditioning Unit with 24H, Window Venting Kit, Remote

Maxesla Portable Air Conditioning Unit, 4 in 1 Portable Air Conditioner 14000BTU with Sleep Mode, Cooling, Dehumidifier and Fan with 3 Speed, Air Conditioning Unit with 24H, Window Venting Kit, Remote

Maxesla Portable Air Conditioning Unit, 4 in 1 Portable Air Conditioner 14000BTU with Sleep Mode, Cooling, Dehumidifier and Fan with 3 Speed, Air Conditioning Unit with 24H, Window Venting Kit, Remote

Maxesla

9.3

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4

Portable Air Conditioner Unit 9000 BTU 4-in-1 Dehumidifier Ventilation Conditioning Cooling Fan with 2 Speeds with Digital Display & Remote Control Window Kit 24 Hour Timer for Room Up to 269sq.ft

Portable Air Conditioner Unit 9000 BTU 4-in-1 Dehumidifier Ventilation Conditioning Cooling Fan with 2 Speeds with Digital Display & Remote Control Window Kit 24 Hour Timer for Room Up to 269sq.ft

Portable Air Conditioner Unit 9000 BTU 4-in-1 Dehumidifier Ventilation Conditioning Cooling Fan with 2 Speeds with Digital Display & Remote Control Window Kit 24 Hour Timer for Room Up to 269sq.ft

Vivo Technologies

9.0

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20% off

5

KALAHOL Air Conditioning Unit 9000 BTU, Smart Home WiFi Compatible, 4-in-1 Portable Air Conditioner Dehumidifier with Window Kit, Digital Display, 24H Timer, for Room Up to 269 ft

KALAHOL Air Conditioning Unit 9000 BTU, Smart Home WiFi Compatible, 4-in-1 Portable Air Conditioner Dehumidifier with Window Kit, Digital Display, 24H Timer, for Room Up to 269 ft

KALAHOL Air Conditioning Unit 9000 BTU, Smart Home WiFi Compatible, 4-in-1 Portable Air Conditioner Dehumidifier with Window Kit, Digital Display, 24H Timer, for Room Up to 269 ft

KALAHOL

8.7

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OtherRelated productsUp to 13% off

Aozzy Portable Air Conditioner PVC Window Vent Kit- Slide Window Kit Plate for Portable Air Conditioner - Portable Air Conditioner Window Seal for Exhaust Hose of 15cm/5.9”

Aozzy Portable Air Conditioner PVC Window Vent Kit- Slide Window Kit Plate for Portable Air Conditioner - Portable Air Conditioner Window Seal for Exhaust Hose of 15cm/5.9”

REDTRON 300CM Universal Window Seal for Portable Air Conditioner And Tumble Dryer, Works with Every Mobile Air Conditioning Unit, Hot Air Stop, Easy to Install(No Need for Drilling Holes)

REDTRON 300CM Universal Window Seal for Portable Air Conditioner And Tumble Dryer, Works with Every Mobile Air Conditioning Unit, Hot Air Stop, Easy to Install(No Need for Drilling Holes)

Air Conditioner Window Seal, Machine-YA Window Seal for Portable Air Conditioner and Tumble Dryer, Works with Every Mobile Air-Conditioning Unit, Air Exchange Guards with Zip and Hook Tape (300CM)

Air Conditioner Window Seal, Machine-YA Window Seal for Portable Air Conditioner and Tumble Dryer, Works with Every Mobile Air-Conditioning Unit, Air Exchange Guards with Zip and Hook Tape (300CM)

AGPTEK AC Window Seal, Portable Air Conditioner Window Kit for Mobile AirCon and Tumble Dryer, No Drilling Universal Seal Kit Air Exchange Guards with Zip & Hook Tape, 400cm/158Inch

AGPTEK AC Window Seal, Portable Air Conditioner Window Kit for Mobile AirCon and Tumble Dryer, No Drilling Universal Seal Kit Air Exchange Guards with Zip & Hook Tape, 400cm/158Inch

6

KALAHOL 500CM Air Conditioner Window Kit, Portable Anti-Mosquito - Easy to Install - Waterproof Wind Resistant No Drilling Window Kit with Zip and Adhesive Fastener for Portable Air Conditioner

KALAHOL 500CM Air Conditioner Window Kit, Portable Anti-Mosquito - Easy to Install - Waterproof Wind Resistant No Drilling Window Kit with Zip and Adhesive Fastener for Portable Air Conditioner

KALAHOL 500CM Air Conditioner Window Kit, Portable Anti-Mosquito - Easy to Install - Waterproof Wind Resistant No Drilling Window Kit with Zip and Adhesive Fastener for Portable Air Conditioner

KALAHOL

8.4

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7

AGPTEK Window Vent Kit for Air Conditioner, AC Window Slide Kit Plate for 5/5.9Inch Exhaust Hose, Length Adjustable 16.5”- 47” with 2 in 1 Coupler & Mesh, Suit for Sliding Window, for Portable AC Unit

AGPTEK Window Vent Kit for Air Conditioner, AC Window Slide Kit Plate for 5/5.9Inch Exhaust Hose, Length Adjustable 16.5”- 47” with 2 in 1 Coupler & Mesh, Suit for Sliding Window, for Portable AC Unit

AGPTEK Window Vent Kit for Air Conditioner, AC Window Slide Kit Plate for 5/5.9Inch Exhaust Hose, Length Adjustable 16.5”- 47” with 2 in 1 Coupler & Mesh, Suit for Sliding Window, for Portable AC Unit

AGPTEK

8.1

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8

KGOGO Air Conditioner Window Kit, Portable Anti-Mosquito Waterproof Wind Resistant No Drilling Window Kit with Zip and Adhesive Fastener for Tumble Dryer and Hot Air Stop, 500cm/197 Inch

KGOGO Air Conditioner Window Kit, Portable Anti-Mosquito Waterproof Wind Resistant No Drilling Window Kit with Zip and Adhesive Fastener for Tumble Dryer and Hot Air Stop, 500cm/197 Inch

KGOGO Air Conditioner Window Kit, Portable Anti-Mosquito Waterproof Wind Resistant No Drilling Window Kit with Zip and Adhesive Fastener for Tumble Dryer and Hot Air Stop, 500cm/197 Inch

KGOGO

7.8

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9

cainda Portable Air Conditioner Windows Vent Kit, Air Conditioner Window Seal with 5.9In (15cm) Diameter Air Conditioner Exhaust Hose, Portable ac Window Kit Adjustable Length 17-55in(43-144cm)

cainda Portable Air Conditioner Windows Vent Kit, Air Conditioner Window Seal with 5.9In (15cm) Diameter Air Conditioner Exhaust Hose, Portable ac Window Kit Adjustable Length 17-55in(43-144cm)

cainda Portable Air Conditioner Windows Vent Kit, Air Conditioner Window Seal with 5.9In (15cm) Diameter Air Conditioner Exhaust Hose, Portable ac Window Kit Adjustable Length 17-55in(43-144cm)

cainda

7.5

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10

HOOMEE 300CM Window Seal for Portable Air Conditioner And Tumble Dryer – Works with Every Mobile Air-Conditioning Unit, Easy to Install - Air Exchange Guards With Zip and Hook Tape

HOOMEE 300CM Window Seal for Portable Air Conditioner And Tumble Dryer – Works with Every Mobile Air-Conditioning Unit, Easy to Install - Air Exchange Guards With Zip and Hook Tape

HOOMEE 300CM Window Seal for Portable Air Conditioner And Tumble Dryer – Works with Every Mobile Air-Conditioning Unit, Easy to Install - Air Exchange Guards With Zip and Hook Tape

HOOMEE

7.2

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