‘Gustavo GG’ mask experiments

I've been playing with Gustavo GG's mask design - https://www.youtube.com/watch?v=YlZciAi6NxU. Well one he's popularizing even if someone else pioneered it.

1. Left of pic: 400-thread cotton outer, 2 layers of satin for the liner.

2. Middle and right of pic: slightly larger designs than the ones Gustavo published, but only one layer of satin.

All three have nose-wire added.  You can see two retainers added to the one on the right. The same retainers can be removed and fitted to the one in the middle, too. 

The mask design has natural pockets for retainers shaped like so, so no need to sew them in:

Experience report

Mask #1 with two layers of satin is hard to breath through. It also doesn't extend far enough down your chin for my liking. As is, it is more suitable for a person with a medium sized head. 

The other two are too big perhaps. The fabric in ten middle is more floppy and definitely needs a retainer (to stop the fabric pulling onto your nostrils and lips). That retainer works very well, I can report. The lower fabric doesn't hug the underside of your chin so there's air gaps. I'd need to experiment more with the shape of the fabric pre-sewing to make that tighter.  

I don't think this mask suits more than two layers of satin (to increase filtration). It'd be harder to sew, but not impossible. The edges for the final sewing need to be flat, and multi-layer fabric use is going make them not feel so flat. Meaning harder to sew in the machine, and finish.

Over all, the cut and sew time for this mask is about the same as the RagMask Max design I adopted a month or so ago, so you'd only choose it for aesthetic reasons, I think.