I also have some silicon inserts, like cages over the mouth! They work well as far as helping with breathing and stops the fabric rubbing on your mouth. I just pop one inside as I place mask over my mouth and it stays in place. I can’t comment on how effective it is to prevent glasses from fogging up as I’ve not used one when wearing my glasses yet. But I can’t see how it will help as moist air still gets out around the nose, even with a nose clip.
Revised heart attack definitions which affect women



