Air purifiers aren't supposed to look beautiful as they are more of a functional device than anything else. Thankfully, the boffins at Sharp decided otherwise, bringing clean cut lines to their new line of air purifiers so that your home doesn't have to look like a relic from World War II. The C100 and C150 air purifiers feature triple filtration technology with HEPA filters to trap most of the unwanted guests in your home. These filters are extremely low maintenance, requiring a change only once every five years. They will be able to increase a room's relative humidity to 50% while a "library quiet" mode ensures you don't have to read the same passage for the umpteenth time, trying to understand it. The C100 and C150 can cope with 254 and 347 square feel rooms, retailing for $399.99 and $499.99 respectively.