The Gree KFR-26GW provides the basic functions of a fresh-air air conditioner. Its fresh-air technology works with the air conditioner's high circulation volume to bring oxygen-rich outdoor air indoors and reduce carbon-dioxide concentration. A professional HEPA filter removes dust, willow fluff and other contaminants.The fresh-air function can be controlled independently and can also operate together with cooling, fan-only and other modes. A thoughtfully designed side fresh-air inlet helps prevent dust from entering the air conditioner. The inlet and outlet use a closed structural design to keep hair, airborne fibers and similar debris from entering the unit and affecting performance.
The KFR-26GW also uses an optimized air-duct design to improve airflow uniformity. With fresh-air mode enabled, operating noise can be as low as 23 dB. These details create a quieter sleep environment while maintaining healthy ventilation.