Masks single NP 305
brand blue eagle mask with one filter
used for dust, gas and chemical factories

Masks brands MASKR
short type with activated carbon to prevent dust or dirt on the lungs " you.

N9 mask 3M brand
99% to prevent toxic or polluting factories
useful for factory workers made   from chemicals

masks Sensi
earloop mask with best quality.
content per box 50 pcs
used in hospitals, factories etc.