3 layers of non-woven clothes.
Free fiberglass filter.
With 3 folds.
Hypoallergenic nasal pin.
With 4 straps or 2 elastics.
Colours: White, green, blue.
High bacterial and viral filtration.
Meet the requierement of standard EN 14683
EFB (Bacterial Filtration Efficiency)> 98%.
Packaging: standard and personalized