Often, fogging when wearing a mask is due to warm, moist air escaping upwards from the top of the mask and hitting the cooler lenses.

Choose a mask with a flexible metal nose strip.
Mold the nose strip firmly over the bridge of your nose and cheeks to create a seal.
Ensure the sides of the mask also fit snugly against your face.
Some people find placing glasses slightly lower on the nose, resting over the mask material, helps create a better seal.
Consider using medical tape to secure the top edge of the mask to the bridge of the nose for a complete seal (use skin-safe tape).

N/A - Addresses the root cause of mask-induced fogging by redirecting airflow.

Ensure Proper Mask Fit