Who invented the automobile airconditioner?

While several people contributed to the development, Willis Carrier is generally not credited with inventing the *automobile* air conditioner, but he is widely considered the "father of air conditioning" due to his invention of the first modern electrical air conditioning system in 1902.

The invention of the *automobile* air conditioner was a more gradual process with contributions from several engineers and companies. There's no single inventor. However, Packard is often cited as the first automaker to offer factory-installed air conditioning as an option in the late 1930s, using systems developed by several companies.