Thank you so much for the info.

Sorry I was remiss in mentioning I have a dreamwear FFM. I bought a pack of the liners,but so far not making a whole lot of difference with the face flatulence. Was wondering if anyone had a different idea. Thanks

What are the best ways of combating the annoying flatulence that sometimes comes from my mask? I’m thinking it’s either a leak or an obstruction of airflow.