We use and recommend Sundström Respirators. They are manufactured ONLY in SWEDEN, and quality is tightly controlled.  

Why SUNDSTROM? We believe they are the most comfortable, flexible, and technically superior masks on the market today. In the tough, rough mining industry in Australia, we discovered most operators preferred the Sundström Respirators over other brands available.

The Sundstrom respirator is definitely the most comfortable that we have ever used, particularly for extended periods. If the mask is comfortable, and works, we discovered that the operators will happily wear them.... Our experience has shown time and time again, once you use a Sundstrom Respirator it will be hard to go back to being satisfied with any other brand.!