Just use a bra cup. Lots of those around!
…and if you source it carefully, it probably smells better… 
Oh, and let’s not forget…
Let’s hope it wasn’t “reused”.
2-4-T? <=> T-4-2.
Instructions not clear, is this right?
PS - Don’t think about selling a bra that converts to an emergency mask - It’s patented.
Hunny mask-whiff-a-view