The Oransi Finn Air Purifier can help you breathe and sleep better with lighter, fresher, cleaner. The carbon pre-filter removes larger dust particles and light odors to freshen up your room and the main filter removes finer sized particles. Featuring a stylish design with a small footprint the Finn fits in well in a bedroom or small office. It is small and light weight so it’s a breeze to carry room to room. This air cleaner features electronic controls with an intuitive LCD display, a filter replacement/clean indicator and 3 fan speeds. Pre Filter: The air first enters the carbon pre-filter, capturing the largest particles, which enhances the durability and performance of the other filters. This filter can also remove light odors. High-Efficiency Filter:The v-hepa air filter captures dust, allergens and other solid particles. This includes contaminant particles such as pollen, dust mites, and other airborne impurities as small as 0.3 microns. Unique low air flow resistance technology makes the air purifier more powerful and effective.