Early Feasibility Study Evaluating the 3P-100 Device in Subjects With PH-ILD

This is a multi-center early feasibility study evaluating the safety and tolerability of the 3P-100 device which creates and delivers iNO (2 mg/hr and 6 mg/hr) for the treatment of subjects with PH-ILD. All subjects will use the 3P-100 device and receive iNO (2 mg/hr and 6 mg/hr) via the 3P-100 device, aiming for \~4-4.5 hours of treatment across both device settings.