FFP2 NR D, disposable mask with shell and valve, metal free

Polypropylene disposable mask.
With collapse resistant double shell construction made to withstand hot and humid conditions.
Dolomite clogging.With outer plastic polypropylene mesh, that protects the mask shape and doubles its lifetime.
The protective mesh protects the filter material from dirt and prevents large particles or liquid splashes entering inside.
Also, being stronger than the material filter, protects it against folds or wrinkles
prolonging efficiency without increasing respiratory resistance
maintaining its shape, to reduce any risk leakage and contribute to increased stability and fit.