Even though the “Sharp IG-DK1A Humidified Plasmacluster Ion Generator" may be a mouthful to say what this handy little device is and does is actually fairly simple: it humidifies the air while creating copious amounts of ions. While it may not clean the air in the traditional way like a Thanko's USB UV air purifier
, the creation of negatively charged ions will actually purify the air. Negatively-charged ions are attract dirt particles that are floating in the air and once these micro clusters of dirt, pollen and etc. are clumped together they become heavier than air and fall harmlessly to the ground. As an added benefit ions have been shown to kill germs and even some viruses, making the air even more pure and safe to breathe. As with all things, the more ions a device can create the faster it help purify the air. In the case of the IG-DK1A
, it is able to create a maximum of 25,000 ions/cm3.
To further help make this rather small - 124mm x 182mm x D166 mm - and lightweight (820g) plastic clad device even more attractive the IG-DK1A can also humidify the surrounding air via its removable 300ml reservoir at a maximum rate of 30ml an hour. Rounding out the list of features is a two speed fan which can be controlled via USB. Overall, the Sharp IG-DK1A certainly sounds like an interesting device; however we do have to wonder about creating all that water and static electricity laden air anywhere near a delicate computer system. Of course, you don't need to use the USB features of the IG-DK1A as it can run its 1.1 to 1.6 watt fan via the included AC power adapter, so there is some merit to using this $220 device.