"Chamber
My son has a Pari Vortex that I boil. I asked Pari on this forum if I could, it didn't say in instructions or at their website. They replied I could. I also have a couple disposable ones from the hospital stay last month. I also boil these. I boil all parts for 10 min. I boil masks for 5 min. and really watch them, I'm afraid they'll melt. I melted a neb mask before, but the inhaler masks are thicker and haven't melted or warped.