 E-R-I-C-K-3, the number three, not the word three. You get three of them. It's an air purifier, so it gets rid of the dust. It gets rid of the pollen. It's filterless, so you don't have to get a filter subscription. It just works with electrostatic plates. You can wipe it out on occasion. You can hold it in the palm of your hand. You can put it in your travel bag.