Regular air force 1 07` air bubble question

I just bought a new pair of air force one low shoes. I was wondering if there is a pressurized air bubble in the heel. I work in a hardware store and sometimes I get a screw or a nail in my shoe. I want to wear them at work, but I don't want to pop the air bubble. I have via pair of mid air force ones that are pretty old and when I step on the heel of some shoe it flattens out like it used to have air in it. These are just the regular all black leather low air force one 07`s. Thanks for your help.