Feature Highlights: 1. Convenient 10-Pack Value – Each bag includes 10 cotton sponge sticks, perfect for maintaining your portable humidifier regularly. 2. Universal Compatibility – Designed to fit most personal USB-powered humidifiers, especially classic columnar and wood-grain aromatherapy models. 3. High-Absorption Material – Made of soft, durable cotton that efficiently absorbs and disperses mist for smooth humidification. 4. Easy to Replace – Simply swap out the old stick with a new one—no tools needed, keeping your humidifier clean and working efficiently. 5. Safe & Reliable – Helps maintain optimal humidifier performance, supporting features like auto power-off protection and consistent mist output. Product Details: These replacement cotton sponge sticks are designed for portable ultrasonic humidifiers. They help ensure steady mist production, reduce residue buildup, and extend the life of your humidifier. Perfect for small to medium rooms (11–20 m²), they’re easy to install and ideal for daily use in bedrooms, offices, or dry environments. Specifications: - Type: Humidifier sponge sticks - Material: Cotton - Size: Approx. 73 x 7 mm - Color: White - Quantity: 10 sticks per bag - Weight: 10g per bag - Compatible with: USB-powered ultrasonic humidifiers (wood grain/classic columnar styles) - Mist output support: Up to 30ML/H - Use: Replacement filter for personal humidifiers Package Includes: 10 x Cotton Sponge Sticks (Note: Only the sponge sticks are included; humidifier and other accessories are not part of the package.) Friendly Reminder: Slight color variations may occur due to lighting or screen settings. Size tolerance is within +/- 1–3 cm.