A. Fogging of glasses while wearing a mask is a common issue. This happens when the warm and humid exhale exits the top of the mask and gets under the glasses. To help reduce this issue as much as possible we have placed a nose wire inside the edge binding of the mask and have made the binding of a soft stretch material which forms a soft seal on the face. Adjusting the placement of the glasses on top of the mask may help further. A trick our team members use by taking advantage of the multiple layers of the mask is to pull the inner layer of the mask up and above the tip of the nose while putting on the mask. Since the outer layer is a stretch material, the inner layer stays in place and diverts the exhale away from glasses and prevents fogging. There are no masks that are "100% Fog Free", as this simply can not be possible. So please question any such claim made by any mask maker. We have done our best to create a mask that when properly used and set to eliminate fogging of glasses.