Backstage designed this desktop air purifier, resulting in what is a stylish, easy to use, super-efficient air cleaner developed in a very short lead time, and with a very comprehensive R&D stage. The rising air pollution anywhere creates an opportunity for (real) domestic air cleaners. The new PM2.5 smog is a national crisis in many Chinese cities for example. With a good product design strategy, this 3309 has a big success on several major markets worldwide.