Activated carbon from coal steam activated. Porosities in these carbon are uses as a filtering media for gas and liquid. It is non toxic and odourless. In gas mask to filter toxic gases. Workshop to remove toxic fumes. Also used in floral drying as its porosities absorbs moisture and can be recycled with oven drying. Scale modellers uses these reflective granules as road tarmac with modelling glue as binder. Knife forgers anneal blades in activated carbon. Garden use for soil aeration and nutrients retention much like the use of biochar as soil amendments. Ornamental fish aquarium filtering media to remove impurities.