Provided is a vehicle air conditioning device including an air conditioning unit in which: a unit case of the air conditioning unit is formed of a plurality of lower and upper divided cases ; and the divided cases are coupled integrally to each other through a mating portion provided to division end surfaces. The discharge opening can be brought from a closed state into an opened state and comprises at least one opening in the first and in the second fastening elements. If the decision is negative, a notification section notifies the operator of the communication apparatus. The glass substrate surface is coated with a mirror reflector coating.