Filtering media of chemical and non-chemical substances included in the class, namely, synthetic amorphous silica filter media for removing gaseous pollutants in the built environment as well as in industrial in-plant equipment; fertilisers and chemicals for use in agriculture, horticulture and forestry except fungicides, herbicides, insecticides and parasiticides; chemical and organic compositions in the nature of proteins, glycerol, fatty acids, polyphenols and sugars for use in the manufac...