S k industries provides pocket filters. Ski-pac pocket filters are manufactured from 100 percent synthetic filter medium. The medium consists of layers of needle felted and thermally bonded synthetic micro-fibres built up into permanently bonded non-woven medium. The medium is exceptionally strong and durable and totally resistant to damages caused by turbulent air. Ski-pac pocket filters are unaffected by extreme conditions of moisture and humidity. They retain the particles removal efficiencies even under wet conditions.