replace used touch+ glass screen

With "removing Air 2 glass", are you referencing to only glass or to glass+touchscreen?

It's too hard to remove touch screen from glass ! I know It's necessary expensive and professional tools to join them again. I'm saying to replace the part which composed by both objects.

@rickyleroy I'm sure @benjamen50 referred to the glass+touch assembly that is troublesome enough to be removed without damaging it. It will take lots of care, patience and right tools. Wish you luck :)

I meant in terms of removing the whole screen assembly from the iPad housing.

Separating the glass from the LCD display is not what I meant.

Glass will sometimes inevitably have to be cracked if the housing is bent in some way that stops the screen from coming out after separating adhesive.