Made with HEPA filter, it can effectively filter dust and prevent secondary pollution. Effectively filter dust, smoke and other pollutants to keep indoor air fresh. Prevent large dust particles from entering the engine room and damaging the motor at high speed, thereby ensuring the service life of the vacuum cleaner. HEPA is washable and it is recommended to replace the filter every 3 months for best results. The same filter size (150 x 120 x 25 mm) can be used with other brands, such as Philips FC9088/9083/9087/FC8760. Note: The data are all measured manually, please allow 1-3 cm error due to differences in light and display, there may be have color differences, please refer to the actual item received.