HEPA (High Efficiency Particulate Air) filters are high-efficiency filters that can retain 99.97% of airborne particles down to 0.3% micron size. These filters are often used in air purifiers, vacuum cleaners, hospitals and laboratories, pharmaceutical manufacturing facilities, nuclear facilities, food processing plants, and other industrial and commercial applications. HEPA filters capture airborne particles such as dust, pollen, mold spores, bacteria and viruses. In this way, it prevents the inhalation of allergens and harmful particles by improving indoor air quality. These filters are also used in industrial applications, clean room systems and to control radioactive substances. HEPA filters are made from specially designed fiberglass or other synthetic materials. These materials provide high efficiency and long-lasting use. HEPA filters are usually certified through special testing procedures and their compliance with standards is documented. HEPA filters offer an effective solution for cleaning airborne particles and improving indoor air quality. Regular maintenance and replacement of these filters is important to maintain their effective operation.