P165569  Synthetic, Efficiency Beta 2: 7 micron, Efficiency Beta 1000: 23 micron

P165672  Synthetic, Efficiency Beta 2: 14 micron, Efficiency Beta 1000: 50 micron

P165675  Synthetic, Efficiency Beta 1000: 5 micron

P165705  Cellulose, Efficiency Beta 2: 7 micron, Efficiency Beta 1000: 23 micron
P170906  Synthetic, Efficiency Beta 1000: 7 micron

P171273  Synthetic, Efficiency Beta 1000: 7 micron

P171274  Synthetic, Efficiency Beta 1000: 6 micron

P171275  Synthetic, Efficiency Beta 1000: 11 micron

P171276  Synthetic, Efficiency Beta 1000: 23 micron

P173521  Synthetic, Efficiency Beta 1000: 23 micron

P173943  Wire Mesh, Efficiency Beta 2: 150 micron

P176567  Synteq XP, Efficiency Beta 2: 4 micron, Efficiency Beta 1000: 11 micron

P179075  Cellulose, Water Absorbent, Efficiency Beta 2: 10 micron

P179518  Synthetic, Efficiency Beta 1000: 9 micron

P561013  Synthetic, Efficiency Beta 1000: 9 micron