General description Fit for X20 / L20 Ultra Dust Box Hepa Filter is made of high-quality material, designed for easy removal and replacement as part of normal maintenance. It is easy to install and reliable to use, ensuring optimal performance for your machine. Technical specifications Material: Plastic Package Contents: 1 x Dust Box, 4 x Hepa Filter Measurement allowed error: +/- 1-3 cm Usage It is recommended to replace the filter every 1-3 months to maintain the best performance of the machine. Other information Please note that there may be slight color differences due to light reflection and different displays, which do not affect the use of the product.