Air Clean Filter. Available on all canisters and uprights, this multi-ply filter is constructed with electrostatically charged material to retain fine particles from the air. To ensure you find a filter suitable for your home, Miele offers an array of high-quality, multilayered filter cartridges that capture dust, dander, allergens and other lung-damaging particulates known to cause adverse health conditions. When combined with our unique AirClean FilterBags™, these hygienic filters form an advanced 12-stage AirClean System™ that retains 99.9+% of all dust particles — as fine as 1/200th the width of a human hair.* So you know you’re taking every measure to purify your air and safeguard your family.