As a zookeeper who works primarily with primates, I wear a mask at work daily. I own many of Wendy's designs, and they are some of my favorite masks. The patterns are simple but beautiful, and the masks are comfortable for all day wear, even in hot and humid conditions. They are also durable and stand up to repeated use and washing very well. I started buying her masks early in the pandemic, and I still use those first ones I purchased 2 years later. They include a hidden opening to insert an extra filter if you choose to. I have also had consistently great customer service from Wendy, and often recommend her online shop to friends.