If you’ve stopped by your local car dealership recently, you’ve probably seen them using nitrogen to fill the tires on your car. This is because nitrogen has superior resistance to expansion as heat rises when compared breathable air. Also since oxygen eventually leaks out of tires, nitrogen-filled tires retain their pressure better over time.

The list of benefits goes on for nitrogen, but the downside has always been how one maintains their tires once you get home, not to mention the arm & leg some dealerships charge for filling your tires up with the most abundant element in our atmosphere. Of course the dealers can charge what they do because there aren’t that many people that have a N2 tank sitting in their garage…until now.