Does not fog up the glasses
Purchased this from a recommendation by Adam Savage, and it is the only mask I've found that does not fog up my glasses to a significant extent on a cold day.<br /><br />However, I have sensitive ears and I cannot wear it for an extended period of time (e.g., an hour) without it hurting my ears, which is a problem I have with most masks (exception: UnderArmour Sportsmask). I'm also disappointed that it doesn't make a better seal around the chin and lower cheek areas. Disposable N95 and KN95 are better in this regard.
Rating: 4 stars