【Design Feature】Replacement filter element designed for use with compatible mini portable USB air cooler devices. 【Structure Design】Filter element features a multi-layer internal structure designed for standard airflow passage within compatible devices. 【Material & Build】Paper-style layered filter supported by a plastic frame, intended for routine replacement use. 【Handling Ease】Replacement-ready format intended for simple removal and installation without additional tools. 【Dimensions】Approx. 4.72 × 4.72 × 4.53 inches (manual measurement reference). 【Weight】Approx. 225 g (reference value). 【Compatibility】Fit option for mini portable USB air cooler and similar compact air cooling devices (please compare size and shape before purchase). 【Occasion / Application】Suitable for routine air cooler maintenance and filter element replacement. 【Quantity & Packing】Package includes 1 × multi-layer replacement filter element; only the listed contents are included, other items are not included. A thoughtful choice for users who appreciate positive community values. Inspired by themes of care and kindness. Created with consideration for community well-being. 【Notice】Measurement differences may occur. Appearance may vary due to lighting and display.