... concentration:40%-85%, Approx the concentration is ≥ 85% when flow rate is ≤ 0.8Litter/min, The concentration is ≥ 75% when ... flow rate is ≤ 1Litter/min, The concentration is ≥ 52% when flow rate is ≤ 2Litter/min, The concentration is ... ≥ 40% when flow rate is ≤ 3Litter/min;(3) Outlet ...