Retention Efficiency: 0.2 µm —LRV > 7 for Brevundimonas diminuta, 0.45 µm —LRV > 7 for Serratia marcescens. Wettability:Hydrophobic. Effective filtration area: 0.1cm² for 4mm, 0.8 cm² for 13mm & 3.9 cm² for 25mm. Hold up volume: <10 µl for 4 mm, < 20 µl for 13 mm & < 100 µl for 25 mm (after air purge).