Features: 1. [Widely Compatible] This air humidifier filter is compatible with HU4905, HU4906, HU4908, and FY3436 models, making it a suitable accessory for these humidifiers. 2. [Eco-Friendly Material] Made from paper material, this filter is environmentally friendly, safe, and durable for reliable use. 3. [Effectively Filter Impurities] This humidifier filter helps effectively capture impurities and supports optimal moisture output. 4. [Replacement Frequency] Depending on usage, it is recommended to replace the filter every 2 to 3 months to maintain peak performance. 5. [Wide Application] The air humidifier filter is easy to install and replace, suitable for use in bedrooms, living rooms, offices, and other indoor spaces. Specification: Item Type: Air Humidifier Filter Material: Paper Compatibility: Compatible with HU4905, HU4906, HU4908, FY3436 Weight: Approx. 160g / 5.6oz Package List: 2 x Humidifier Filters