DriPak ® 2000 Filter Designed for high performance in demanding operating conditions, the ultrasonically-welded DriPak 2000 extended surface pocket filters can function as prefilters or final filters where clean air is a necessity. DriPak 2000 filters are ideal for healthcare facilities, automotive paint booths, commercial buildings, and a variety of industrial applications. Designed and manufactured by AAF International, pioneers in extended surface pocket filters, the DriPak 2000 filter raises the industry standard for value and performance.