A humidifier that purifies the air. encompassing a 50 m2 area. Ions in a plasmacluster. Ion Generator: Seven Thousand Ions (s/cm3). There are five operating modes: Maximum, Medium, Low, Sand, and Sleep. Pre-filter for washable fine dust blocks. Durable Odor Eliminator. Non-removable Static Power 99.97% antimicrobial HEPA filter. Reusable Humidification Filter. Six Senses Perceiving Seven Elements Accurately Managed Autonomous Function