This company is a scam
This company is a scam, the masks are not certified as their fake US paperwork says and even those I returned the defective masks, I was not refunded the nearly $50 paid. PayPal protected them as well. Stay clear -- both are SCAM!! Update: I provided all documentation of the returned masks, yet the company continues to say never received. Just stole my money with fake masks - a scam! Be careful!