Review (5/5): Perfect except...
Those little rubber rings can come off. But you can put them back on with some patience. If you have horrible acne, this is a great alternative to protect other people from you. It does provide you protection from others, however. I would even argue that this is superior to cloth masks because if it gets wet, it's still useful! And cleaning it as easy as some disinfectant spray/soap water/etc. Highly recommend if you choose skin comfort over self-protection but still want to keep others safe from you.