label: Attach humidifying unit to the flow meter, as indicated (i.e., oxygen must be humidified to avoid mucosal drying when delivery bypasses oral cavity or when delivered at levels higher than 6 L/min)
label_lc: attach humidifying unit to the flow meter, as indicated (i.e., oxygen must be humidified to avoid mucosal drying when delivery bypasses oral cavity or when delivered at levels higher than 6 l/min)