Chadlee needs a portable O2 concentrator

Hello my name is CJ, my son Chadlee has a life threatening illness called pulmonary hypertension. He requires oxygen at all times and occasionally requires ventilator support as well. We live in Amarillo however his team of specialists managing his PH is in Houston and has a team managing his Trach and ventilator is in Dallas. Travel is sometimes hard having to make several trips back and forth every couple of weeks. Chadlee has been cleared to fly to and from however we are unable to fly with liquid oxygen/oxygen bottles. A portable oxygen concentrator would be beneficial for travel as well as at school. Any support would be welcomed and appreciated.