Compared to 3M variant bothers them less at the same time wearing protective glasses,
smells more pleasant and sits compact.
On the other hand, the protected area is a smaller and there is more heat buildup.
I feel that by the latter is performed at temperatures above 25 degrees but a bit annoying.
Breathing itself is going well.
If one does not just jog so, one should hardly come into breathlessness.
I can wear them for over an hour at a time without any problems.
Although it dampens a bit, but the language is still well understood.