The 24-year old joined Arsenal for £42.4million on deadline day and his national team boss can't understand why Madrid sold him.
"For me, it is a bit incomprehensible that Real Madrid would get rid of one of their best players, who is of a high quality and looked more decisive than ever last season," he said.
Low also felt that Ozil's move to Arsenal will benefit the Die Mannschaft squad: "Ozil's Arsenal move will be a good transfer for the national team because he will play for a team which has an overall great technique - that is good for him.
"Mesut is a sensitive player who still needs to feel as though he has complete confidence from his club and coach.
"From what I heard from Madrid ahead of the transfer, you could feel that the trust was no longer there 100 per cent. Arsenal tried hard to sign him. That did him good."