ipa flow rate (l/min) pressure drop (psid) 0.45 1 0.7. 3.5 0.05 0.10.2. air pressure drop (10. inches cartridge)-ptfe . 0.2 0.4 0.6 0.8 1.0 1.2. 0 500 1,000 1,500 2,000 2,500 3,000 3,500 4,000 4,500 5,000 5,500 6,000. air flow rate (sl/min) pressure drop (psid) 0.7 0.45 0.2. 1.4 0.05 0.1. karei