Cerva three-layer face mask FMN99 50pcs/pack

Cerva 3-layer medical protective mask with elastic ear loops and nose clip.
Complies with standard EN14683, Type IIR (bacterial filtration efficiency 98%).
Limits the spread of viruses.
Open the package with clean hands. Adjust the clip at the top edge of the mask against your face so that
the mask fits tightly against your face over its entire surface.
Do not use the mask for more than 4 hours.