I have all my life to use a dust mask and am therefore a regular buyer this mask, this mask because I find really super after numerous test runs. The comfort is just great. Even after 5 hours, the mask is still not perfect. Of course, even condensation, which is inevitable in a use of 5 hours, forms, but I can breathe wonderfully and comes's yet. Who, like me, need a dust mask at a high level, which is operated top with this mask. Just buy it and the shipping was very fast !!!
One should, however, the large package (contents 10 pieces = 37, - EUR) and the small package (contents 5 pieces = 16, - EUR) compare. To save money, I ordered two small packages, so I then had 10 masks, but I could 5, - EUR save ;-)
