Traditional bubble wrap is small bubbles with air already, we need to tear it hardly or use a scissors to cut it. Air bubble wrap is no air when receive it, will need air cushion machine to inflate it. But it’s easy to tear as it has perforated line, and it take small space as it’s no air at the beginning.
No, the air bubbles are arranged in rows, when one bubble burst, that row will leak ,but no influence to the rows nearby.
No, the air bubble must be inflated by air cushion machine, as the machine will inflate and heat sealing the film.