Designed specifically for Quiet Purifiers, ensuring a for models HFD070, HFD120, HFD-120, HFD300, and HFD320. High-efficiency filtration system captures dust, pollen, pet dander, and other airborne particles, improving indoor air quality. Easy to install and replace, making maintenance hassle-free and convenient for users. Recommended replacement every 3-6 months based on usage environment and frequency, ensuring optimal performance. construction designed to withstand regular use while maintaining effective filtration capabilities. This filter is engineered to enhance the performance of your Quiet Purifier, providing cleaner air for your home or office. With its high-efficiency filtration, it effectively traps a variety of airborne pollutants, contributing to a healthier living environment. Regular replacement is essential to maintain air quality, and the easy installation process allows you to keep your purifier running smoothly without any complications. Enjoy the benefits of fresh, with this reliable filter designed for your specific air purifier models. Color: As Shown Material: Activated Carbon Filter Cotton Package Contents: 4*Air Purifier Filters Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.