very dense, adjustment for precise adjustment to the head shape

Previously I had only this simple white dust masks. Since I spend a lot of time lately in my workshop, I was looking for a tireless use and comfort, adjustable, dense dust mask and they've also found.
The rubber bands can be adjusted at various locations in order to adapt them as closely to the head shape can. This she sits very comfortably and even after several hours.

The mask holds really super tight. You can test this by forcing a palm on the centrally mounted air outlet and exhales. Should still air to escape, you can feel exactly at what point the mask is not clean and bears can adjust the corresponding rubber.
Even when painting with strong solvent-based spray paint you can smell the mask of nothing at all.

We recommend. I would buy them again and again.