All nebulizers come with 7 ft (2.1m) oxygen tubing Provides fast and effective medication delivery Medication capacity of 5 cc/ml is conveniently graduated on medication cups Locks with _ turn and is spill proof Airflow: 6 LPM MMAD: 3.00 micron Minimum Aerosol Output: 1.9 cc/mL Minimum Fill Volume after 10min of operations: 2 cc/ml Residual Volume after 10min of operations: 1.1 cc/ml