Central Vacuum Muffler / Silencer

Not sure how many people are looking for vacuum mufflers on Thingiverse, but if you are, you've come to the right place!

I somehow managed to lose mine so I designed and printed a new one. To my surprise, it works pretty well! The airflow is not noticeably restricted yet the noise dropped from 90 dBa to 79 dBa. See it in action here: https://www.youtube.com/watch?v=wev-VcMSJIU

Note: I had the inlet open in the garage for testing so the real world sound levels are lower when you're vacuumin