On Thursday, January 3, 2019 at 10:15:58 PM UTC-5, John B. Slocomb wrote:
Snipped
A sort of related question :-)

A while ago you talked about breathing problems in cold weather and
several folks recommended a mask. Did you try that and what were the
results.

As an aside it is, at the moment, 25.3 degrees (C) which is seriously
cold... particularly when your clothes closet only has shorts and tee
shirts hanging in it :-)

cheers,

John B.

When it's quite cold here I wear a blue plastic dust mask with a filter. That really works well in creating warm air to breathe in instead of frigid air.

https://p.globalsources.com/IMAGES/P...cing-Slice.jpg

If you don't like the rigidity of the plastic then a couple of simple paper-dust-filter masks can also work pretty well.

https://5.imimg.com/data5/CR/XL/MY-3...sk-500x500.jpg

Cheers