All of our masks are fitted with nose pieces which are attached to form a seal around the bone of your nose.
First of all it is important to make sure the nose piece is located at the top of your nose on the bone. This will prevent the nose piece from clamping your nose shut.
If you’re wearing glasses and you see them fogging up, this means you don’t have a full seal around your nose.
To make sure you have a full seal you have to make sure that the nose piece is pinched tightly.
You can also pinch your nose piece quite tight before putting your mask on. When you have it on, slowly pull the mask apart on your cheek bones while you close your mouth and breathe through your nose until you can fully breathe through your nose.
Then test to see if your glasses are still fogging up.