iZone utilises high quality filters that capture the smaller allergy causing particles that may be harmful to your health. iPure, iZone’s highest quality natural air filter captures house dust, mould, pet dander, virus carriers and pollen to help reduce symptoms and make breathing easier. iZone chooses only the best, Flanders Merv-8 filter media, which has the highest ducts holding capacity and lowest pressure drop of any media in its class.