1. Glucose (C6H12O6): This is the primary fuel source for cellular respiration, providing the energy needed for various cellular processes.

2. Oxygen (O2): Oxygen acts as the final electron acceptor in the electron transport chain, allowing for the efficient production of ATP.

3. Water (H2O): While not strictly a "raw material" in the same sense as glucose and oxygen, water is necessary for many steps within the respiration process. It acts as a reactant in some reactions and is a product of others.

It's important to note that these are the essential raw materials for aerobic respiration, which is the most common form of respiration in humans and many other organisms.