Best face mask for those with breathing difficulties?

[babydisney]

Going on from another poster who moaned about wearing a face mask, I'm actually all for them, I have a severe asthma and suffer from hypoxemia as a result and at work wear a visor, however I've just been using medical masks in shops and have been really struggling to breathe I wondered if anyone had found a great mask for those with lung impairments and recommendations for not just me but anyone trying to find a mask to wear. Yes I understand some people will say 'but you're exempt' I know but also if I catch covid I and others could die, I would like to find a comfortable (ish) way of wearing the mask!

I’ve no personal experience of these, but amazon do clear masks, packs of 4 for £6. I just put clear mask in the search box.
They look bigger around the mouth - more stand away from your face, yet are flush to the skin around the edges. Would that help?

the under armour one is not flush to the face

I suffer from mild to middling claustrophobia and I find the throw away medical masks really difficult to breathe through - I've had to run out of a shop before to take it off.
I've bought loads of masks from Etsy and the only one that I've found that helps me is this one.
It's got lots of space around my mouth - plus a bonus that it doesn't fog up my glasses, which also helps if I start feeling anxious .

That looks good sam ,structured .Thanks for posting .