Personally, I found the masks excellent! The quality of construction/materials is very good, while the adjustable fit on the ears is particularly welcome. I feel really comfortable wearing them (as an adult). In short, I highly recommend them without reservation!

Quality-wise, I would say it's perfect! Very nice design and good material, but personally, it didn't fit me at all as an application, regardless of adjusting the length of the cord on the ears. I consider it to be quite small, and either it would come out of my mouth or stick to my mouth, resulting in me touching the fabric with my tongue as I speak. This makes it completely unsuitable for such use.

However, in order not to completely discredit the product, perhaps this is partly due to the fact that the mask is intended for a group of people with small faces, such as children, but I don't think it would be suitable for an adult to use.