Info: Available in Several Colours
The Blueair BLUE Pure 211+ Air Purifiers are outfitted with a stretchable fabric pre-filter around their air filter, to catch larger particles in order to extend the life of that main filter. These prefilters can last a long time -- just vacuum them gently or put them in a washing machine, when they need cleaning -- but eventually they begin to look a bit frayed. Or you may also want to change the look of your machine by switching to a different colour, as the seasons change, or to match a different room. They come in five colours, as shown, and can be put on very quickly. They fit on both the new Pure 211+ and the original Pure 211 models.