This is neither an endorsement nor a recommendation, but curiosity led me to look this up.
For those who may be unfamiliar with "The Breather" you can read about it here:
https://columbiasci.com/the-breather/
I also confirmed that you can sterilize it in 70% alcohol, but DO NOT boil.

For those of you using the device, how do you clean and sterilize yours?