Medify MA-40 has proven itself to be one of the best air purifiers ever introduced to the market, It blends style, and technology with power, and quality long-term air cleaning, This unit is the perfect choice for nearly every situation and room, Cleans an area of 840 sq. ft. every 30 minutes, Three Layer Filteration. https://www.vizocare.com/collections/air-purifier/products/medify-air-purifier-ma-40