A certified device for personal protection of respiratory system, designed for rescue in emergencies, where there is smoke and hazardous vapours. The COGO mask provides users with short-term respiratory protection against smoke and carbon monoxide and is tested against CO, HCl, HCN and acrolein. The COGO mask is certified in accordance with European standard EN-403 and has a CE-EU mark. The COGO-S mask is designed for environments containing sulfur gases. The COGO-S is tested at high concentrations of H2S and S02.