With optimum capability and rich industry expertise, we have been able to emerge as a trusted supplier of Sharp Portable Air Purifier Air Sterilizer. It can effectively remove ultra-fine particles as small as 0.02um. Also it filters out harmful gases such as formaldehyde and TVOC. It's smart air sensor can detect quality of air and boosts the air purifiers speed to deal with the pollution. The healthy air protect alert of this Sharp Portable Air Purifier Air Sterilizer lets you know promptly when it is time to replace the filter.