Here are entered works on equipment that provides the user with a safe supply of air or oxygen in an environment where air is unavailable or unsafe to breathe. Works on equipment used to provide medical care are entered under Respirators (Medical equipment).
Here are entered works on the consumption, at the same meal, of foods that complement each other to ensure adequate protein nutrition or that produce the same digestive process to maintain acid-base equilibrium.
Here are entered works on biochemical and genetic engineering processes involved in the synthesis, modification, and production of protein products for various applications.
