A commemorative plaque with a bas-relief of Nikolay Zelinsky (1861-1953) has been set up in downtown St. Petersburg.

      The commemorative plaque to Nikolay Zelinsky, who invented the gas mask, has been set up on the facade of House No. 19  in the Moskovsky Prospect, where the All-Russian D. I. Mendeleyev Meteorology Scientific Research Institute of Metrology is located. It was in this very building where the scientist worked on the gas mask discovery.

      The Russian scientist had denied to be nominated for the Nobel Prize, and never patented his invention, since he believed it inappropriate to profit from people' sufferings.