NOTE: 1. Applcation area: air purifier 2. Cooling way: air fan 3. power source: 220v/50hz, 110v/60hz 4. Shell material: Platic APPLICATION AREAS: This generator is widely used for hosipitals, medicine shops, packing room, food workshops, super- markets, hotels, offices, meeting rooms and so on.. This product can be hung on the wall, so it can save much space. It is enjoying great popularity around the world for its wonderful design, high quality and reasonable price.