The LG HPS-B090BW Ionizer is designed to improve air quality and provide a healthier living environment. It features Nano Plasma Ion (NPI) technology, which generates both negative and positive ions to suppress the vitality of bacteria and sterilize common airborne microorganisms. The ion intensity can be adjusted to suit your preference, and the device also includes a mood light function with adjustable brightness and a sleep mode for nighttime use. The filter is easily removable for cleaning and should be cleaned every two weeks for optimal performance.