Noone@home wrote:

If the respirator leaks then you have not fitted it correctly, or your face
shape will not allow for a proper fit. If air leaks out around the seal,
nasties can leak in through the same holes!!

I believe the original poster wasn't complaining about leaks but rather
the fact that wearing a respirator causes his glasses to ride high
(presumably because the glasses end up sitting on the respirator rather
than the nose itself).

I run into this problem myself trying to wear safety glasses over a
respirator.

Chris