Portable oxygen concentrator

I was thinking if we could implement this product into the cars. As you all know, portable oxygen concentrators are used to provide oxygen therapy to a patient at substantially higher concentrations than the levels of ambient air. This device is similar with the home oxygen concentrator, but it smaller in size and more mobile. The portable concentrators plug can usually be plugged into a vehicle DC adapter. So, I think this is can become one of the car safety requirement in future. At the moment, this only can be seen from the ambulance car. What do you think? hehe