In everyday life, the public uses high-efficiency particulate arresting (HEPA) vacuums for their homes to reduce the number of allergens and irritants in the environment and improve the quality of air. In the document restoration world, professionals use them to clean documents damaged by water, mold, smoke, pollutants and other debris. At Polygon, the use of this advanced technology not only safely cleans damaged documents, it also helps remove some odors and prevents further damage.