RepairPal Certified shops can diagnose and repair your 2011 Mazda CX-9. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
If there is no air blowing in the front at all, there could be an issue with the blower controller, a relay, a resistor, a blower motor. Hard to know what has caused the failure until you test and find out what's going on.