Complex sentence: Since the Teleportation device filters the atoms in the body being teleported, If Kevin goes through it he will be separated from the field which come to be true when Kevin is teleported to a another room in the bunker, the field is separated.
Split into simpler sentences: Since the teleportation device filters the atoms in the body being teleported, if Kevin goes through it he will be separated from the field. This turns out to be true, for when Kevin is teleported to another room in the bunker, the field is separated.