I realize the air pressure quick disconnects are self-sealing, but do they seal on both the male and female end ? or is it only one way?
Pressurize it, take it loose and find out (TL;DR: No. ;)
Pro-tip: Kink the hose like you do with garden hoses, and let the air out slowly (pointed away from yourself) when you disconnect a male end. Don't let it 'fire-hose' itself and flail all about, which can damage it or you. However, unlike garden hoses, NEVER put your finger over the end to try and stop the flow of air.