By adding a second intake hose, the air conditioner draws condenser air from outside instead of using already cooled indoor air, helping improve cooling performance and reduce negative air pressure inside the room.
Meaco MC Air Conditioner Dual Hose Conversion – Intake Adapter for Portable AC
Meaco Cirro Portable Air Conditioner Dual Hose Conversion Service
Portable Air Conditioner Dual Hose Custom Design – Meaco Cirro, AEG, Electrolux
Meaco Costco 12K Portable Air Con Dual Hose Conversion Kit A-COSTCO12K-PRO-CH
Portable Air Conditioner Dual Hose Conversion Service – Meaco AEG and more
Dual Hose Conversion Intake Adapter compatible with Meaco Portable AC