AP-0807DH is an air-purifier+humidifier, which uses HEPA filter and provides various Customized filters for air purifying and use natural evaporative system for humidifying. The product can be used as an air purifier or an air-purifier+humidifier depending on the user needs. Because this is an amenity product it is designed to eliminate noise when placed in the home or office environment. Therefore the overall form factor consists only horizontal and vertical lines, which gives a simple and solid look. And through a symmetric design the product has a same look and feel from any angles. The indication lights are subtle to give a nice soft feel.