Black + Decker air purifier 8-hour timer can be set to automatically shut down the device at a specified time to save energy. settings can be easily adjusted via the soft touch controls, while the filter change reminder indicates when a replacement is required. air purifier: y cooling fan: n depth: 30.3 cm extractor fan: n 99.97% of fine particles filtered: hepa 13 filter captures fine particles to create healthier airflow powerful air purification: effectively cleanses air with a delivery rate of 400m3/h 3 air purification filters: captures dust, pet hair and pollen to improve allergies while eliminating germs and odours 3 mode settings: sleep, high and automatic modes provide efficient air cleansing built-in 8-hour timer: automatically powers down the device at a set time to save energy height: ideal fir rooms up to 50m2