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Hepa Filters High Efficiency Particulate Washable Air Filters are the most efficient air filters commercially available. They are used in clean rooms and other applications requiring ultra-clean air, Semiconductor, electronics, pharmaceutical manufacturing, food processing, hospitals and labs. Hepa filters are built in to 16 gauge Aluminium/SS construction are some times known as absolute filters, essentially dry arrestennce filters with exceptionally high efficiency 99.97% down to 0.3 Microns. Hepa filters are generally tested by DOP test (Di Octyl Pthelite test). We use a glassfibre paper media (generally 150 pleats) separated by piece of corrugated material generally used Aluminium to keep resistance and media velocity. The filter pack and separators are sealed with fire retardant solution when dry hardened providing positive seal for leakage. Also provided with suitable gaskets to avoid leakages when tightened. Super Hepa filters are same built as conventional filters. But having double the capacity with same initial pressure drop.
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