With the amount of smog accumulating outside these days, no thanks to ever rising levels of affluence that leads to every family owning at least a couple of cars, it is no wonder that an air purifier is an important addition to any home - if you're serious about staying as healthy as possible. Most air purifiers are functional, although they lose out on the aesthetics side, but the ‘Window’ concept is different in a sense that it looks just like a real window. The air purifier features a transparent LCD that becomes dark if the air quality in your home drops dramatically. Interestingly enough, to turn on the purifier, you will need to "slide open" the window in order for the cleaning process to begin.