Why is it easy to fog when you use the mirror for a long time? How can you prevent fog?
Hello, I am glad to answer for you!Don't take it off often when you wear it. Don't wear your glasses on your head
If it's too cold, stick the exposed ala with a medical adhesive tape so that it doesn't freeze, and a band aid also works.
Don't put your face and hat in your glasses. If the temperature is not too low, try to expose your nose