Not being a trained medical professional, is it better to invest in Bolin Chest seals or the Halo chest seals. My uneducated read on this is that if I use a Halo and tension pneumothorax develops I have to use a decompression needle with cath if the injured party can't get to a hospital right away. If I use the Bolin, with the three one way valves in the first place, will the likelihood of tension pneumothorax be lessened?

I know it's a simplistic statement, but a shove in the right direction is a grand thing. If you have minimal training, what is the better chest seal? And yes, I understand that the training is important and I am seeking out competent training, it's just not happening this week.