The AC230 Air Purifier from Delonghi improves the air around you with 5-level Filtration (extra large filter) and XL ioniser- reducing your exposure to house dust mite- cat/dog allergen- pollen- funghi and cigarrette smoke. The XL HEPA Filter is effective against dust particles as small as 0.3 micrometer in diameter. It also has a washable and re-useable XL pre-filter. The XL ioniser neutralises particles of dust- pollen- car fumes and smoke contained in the air- while the XL Carbon Filter is effective against various harmful gasses and odours- thanks to the properties of active carbons. The XL Silver Ion filter is effective against bacteria.FeaturesAQS system - the air quality is constantly screened during the use of the machine- and the lights will change colour depending on bad- moderate or good air qualityGAS&ODOUR sensor - when the sensor captures particles of smoke and gas- in AUTO mode the fan accelerates its speed to clean the air in a more efficient and quicker wayTiO2 FILTER + UV light - very effective against all air impurities- the UV light has the property of destroying the cells of the particles that are then collected by this special photo-catalyst filterNANO SILVER FILTER is 99% effective against bacteriaHEPA FILTER - effective against dust particles as small as 0.3 µ m in diameter or biggerCARBON FILTER - effective against various harmful gases thanks to the property of active carbonsIONIZER - it neutralizes the particles of dust- pollen- car fumes and smoke contained in the airWashable re-usable PRE-FILTER for big particles such as human and pets hair3 FAN SPEEDS + AUTOTimer off 1-2-4-8 hours Filter dirty indicator - after 720 hours of use the machine advices that the 2in1 Hepa+Active Carbon filter needs to be replacedControl panel with SENSOR TOUCH SCREEN