Anti dust halfmask provide dust protection for respiratory system during works that require high physical effort. Valve improves breathing by reducing inhalation resistance, while reducing amount of carbon dioxide and water vapours under the mask. FFP2 mark informs about indications for use, when concentration of harmful substances does not exceed tenfold of maximum permissible concentration. CE mark is a safety warranty and proves that the product meets all European requirements. TOPEX brand is oriented towards DIY enthusiasts.