Ultraviolet Type C Technology, the Ionizer, the HEPA Sterilization Filter and the Autonomous Smart Cleaner function compose the System 4 Total Clean which is a guarantee that your device provides proven clean air in your space.\u00a0With the advanced Type C Ultraviolet Technology that emits ultraviolet light that \u201cbreaks\u201d the molecular bonds of microorganisms, by neutralizing them, you ensure a clean atmosphere, free of viruses and bacteria.\u00a0The ionizer removes harmful particles, offering a constant feeling of freshness.\u00a0The HEPA Sterilization Filter and the Autonomous Smart Cleaner Function complete the 4 Total Clean System and ensure a perfectly clean atmosphere.\u00a0At the same time, the HEPA Sterilization Filter with the Atmosphere XL holds 97.79% of the suspended particles while the PM2 sensor.\u00a05 detects unwanted particles, instantly informs you through the three-level air quality indicators and adjusts the operation of the air purifier accordingly.\u00a0This smart function turns your dehumidifier into a standalone air purifier, integrating 2 devices in 1!<\/p>\n