Quality Material : Trust in the strength and purity of our fiber cotton filters, crafted to withstand regular use without compromising performance. Portable Personal USB Powered : Ideal for both office and travel, these mini sticks are compatible with a range of portable USB-powered humidifiers. Good Water-Absorption : Enjoy optimal hydration in the air with our filters' superior water absorption capabilities, promoting a healthy environment. Easy to Use : Installation is straightforward, allowing you to focus on enjoying the benefits of humidified air without any hassle. Extend Life Of Humidifier : Regular replacement ensures your humidifier runs efficiently, saving you money in the long run. Experience the peace of mind that comes with using high-quality fiber cotton filters in your portable USB-powered humidifiers. These mini sticks are the perfect companion for your office or travel needs, delivering consistent moisture levels while being incredibly easy to use. The white fiber cotton material ensures that your humidifier operates at its best, extending its life and providing clean, fresh air whenever you need it. Embrace the luxury of a well-humidified environment today! Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.