Micro Star Air Filters - manufactures High Efficiency Air Filters. IAF is an established maker of HEPA filters and fan filter modules with state-of-the-art technology. IAF uses automated machineries to produce the HEPA Filters to ensure best quality and quick delivery. Each and every filter pass through the quality, air velocity, filter efficiency and particle tests. Every filter is supplied along with test certificate. High Efficiency Particulate Air Filters are made of fine-diameter fiberglass compressed into a fabric-paper sheet, which is then finely pleated to increase the particle-trapping surface area.