Activated charcoal and corncobs smoke filter August 14, 2021userComments (0) Name of the Innovator: Siddharth Y & Shreyas Bhargava District: Hyderabad Name of Innovation(English): Activated charcoal and corncobs smoke filter Name of Innovation (Telugu): సక్రియం చేయబడిన బొగ్గు మరియు మొక్కజొన్న పొగ వడపోత Category of Innovator: School Student Sector of the Innovation: Energy Previous Next