This dust mask offers high wearing comfort with an aluminum nose clip and adjustable elastic straps. The FFP2 fine dust mask with exhalation valve protects against all solid and liquid particles up to 10 times the MAK/TRK value for moderately toxic dusts and substances such as asbestos, chromium, copper, titanium, hardwood, welding, and soldering. CE certified. EN 149:2001 + A1:2009