Canister cylinders are filled with substances such as activated carbon, silica gel, and clay these substances act as dehydrating agents for controlling odor and moisture. Canisters used in the Laboratory with high chemical resistance which are made up of High-quality PE-HD material for safe disposal of chromatographic solvents or other liquid laboratory waste, they are also used to store chemicals, and transport gasses, compressed gas canisters are used for welding carbonation, medical oxygen.