Lost 1 Airpod

I lost one of my airpods today, I'm trying to use the find my iPhone to locate it however it only shows me the location of the 1 airpod I do have with me. I tried using the play a sound option, and it plays it for the airpod I do have, however while it plays the sound I see that there is an option to mute the left airpod (the one I have), pause the sound, or unmute the right airpod ( the one that is lost). How am I supposed to find the other airpod if its supposedly not playing any sound and if it only shows me the location of the airpod I do have, even if it is in its case?