A/C not working will not blow air

Aloha ;) I would replace the car batter first. Here is a guide that will help you:

https://www.2carpros.com/articles/how-to-replace-a-car-battery

Next it sounds like the blower motor needs to be replaced but to be sure here is a guide that shows you how to test he power and ground to confirm the failure and how to replace the blower motor:

https://www.2carpros.com/articles/blower-fan-motor-works-on-high-speed-only

Please run some tests and get back to us. The blower motor is under the dash on the passengers side.

Cheers, Ken