Hi. im in the ninth grade and now about to enter the tenth grade and we have this scientific invest

hi.. im in the ninth grade and now about to enter the tenth grade and we have this Scientific Investigatory Project Entitled "VEHICLE EMISSION FILTER FROM MADAGASCAR DRAGON TREE (DRACAENA MARGINATA TRICOLOR) BIOBRIQUETTES." We just wanted to ask if you could help us regarding the design of the filter tube itself. it will be made for different types of vehicles. We would also like to ask which materials will do graet for the structure of the filter tube. We think that we need a material that is heat resistant and at the same time non-conductive. Hope you can help us. Thank you very much!