What if you lose one air pod
I lost my right air pod can I buy just a right pod.
Yes. See the following from If your AirPods are lost - Apple Support
If you still can't find your AirPod or Charging Case, or if something is damaged, get the serial number and then contact Apple Support for a replacement. Then learn how to set up your replacement.
You can also learn more about AirPod pricing and service options.