【Aluminum Foil】: Features aluminum foil insulation for enhanced thermal efficiency and energy savings.

【Expandable Design】: Adjustable expandable sleeve fits various portable air conditioner hose sizes seamlessly.

【Dustproof Protection】: Prevents dust accumulation, maintaining optimal airflow and cooling performance.

【Lightweight Build】: Lightweight construction ensures easy handling and portability without compromising durability.

【Energy Efficient】: Designed to reduce heat loss, contributing to lower energy consumption and cost-saving.