You have to be careful though. If company name and address isn't listed on the box, counterfeit. If FDA is listed on box, counterfeit. Do your research before you buy. I research everything before I buy anything online. If company name is listed, look up and see what kind of standing they have as far as licensing. Protect yourself because no one else will. Even with that, counterfeits are better than paper, cloth, or no mask at all. I'm 68 so I am cautious but not obsessive.