Efficient, economical, reliable: Hankison High Performance Compressed Air Filters - with Application Guide E5-48 Efficient, economical, reliable: Hankison High PerformanceCompressed Air Filters - with Application ... Filter Grade 1For removal of oil and hydrocarbonvapors normally adsorbable by activatedcarbon; removes solid particles to 0,01micron (0,003 ppm ...