Review on Squirrel Products RESPI-Gaiter, Neck and Face Cover with Advanced 6-Layer Filtration - Optimize Your Search! by Paul Evangelista

The three-layer outer shell and pouch do the job very effectively, even without the use of a filter. However, the tight fit makes it difficult to breathe when I talk a lot, which I do as a teacher. I found that I had to periodically remove the mask to get some air. Adding a filter during training would be unwise considering how tight the element is. The nose strip has enough flexibility to be comfortable to wear. There was only one color available in the large size and it wasn't the color I chose. Would buy again if other colors were available in a larger size.