Filtering device for face masks. Device for respiratory protection against gases, vapours and dust. Gases and vapours present in the environment are removed by adsorption by the adsorbent material (activated carbon), while particles are filtered through the filter made of various fibres. It is suitable for both face masks and half-masks and is prepared for a screw connection. Materials: Filter body – aluminium (coated on the inside) Sorbents – activated carbon. Particle filter – micro glass fibres, cellulose fibres, additives. Fixing cap – plastic. Labels and seals – paper.