Purchased masks in mid-December and felt good when I got a message from Bill, the owner with a telephone number and personal email. Size does not fit from simply glancing, and wanted to return or exchange immediately after receiving the. Never received a reply from the customer service email. Moreover, Bill does not answer or respond to VMs or eMails. After several weeks, still NO reply from any source. Agree with another customer that 'Negative' stars would be more appropriate.