Gulfstream G200 (IAI 1126 Galaxy)
Flight Crew Multiengine; Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP)
Time Pressure
Deviation / Discrepancy - Procedural Hazardous Material Violation; Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew Overcame Equipment Problem
Human Factors
During the baggage loading phase I loaded a small box containing approximately 6 small bottles of recreational Oxygen. We departed ZZZ with a final destination of ZZZ1 and the flight proceeded uneventfully. Upon arrival all baggage was unloaded and the First Officer questioned me after the passengers left regarding the contents of the box. At no time up to this point did I consider the possibility of this being HAZMAT or anything not authorized to be carried by us. Upon further research I felt compelled to reach out to the Chief Pilot for guidance. I suggest a more thorough training of company policies; procedures; and specifically HAZMAT information. Access to more detailed information regarding Hazmat material.
The owner and family arrived to the airplane ramp side. I went to open the exterior baggage compartment; to load the luggage. While loading bags the line personal were bringing me; I saw the Captain was also loading bags/backpacks etc. inside the cabin of the airplane. After the the baggage was loaded in the exterior baggage compartment of the airplane; I walked into the airplane greeted the owner and family and sat down in my flight deck seat to preform the rest of the pre-takeoff duties for the flight to intermediate stop to pick up two passengers and then finally on to final ZZZ1; our final destination. All flights were uneventful. When we landed at ZZZ1 while unloading the baggage; I noticed the box contained portable Oxygen containers which the Captain had loaded at our initial departure airport. After the passengers were on their way; I mentioned to the Captain about the box and it's contents. I said I don't think that was something we could carry; as it may be considered Hazmat. We further discussed this and performed research of company FOM and HAZMAT. The Chief Pilot was contacted to get clarification and guidance on this issue. I suggest more specific HAZMAT guidance and possibly more comprehensive HAZMAT training. Also a more detailed description of carry and non carry items would be helpful.
G-200 flight crew reported inadvertent transport of undeclared Hazmat material.