What volume of blood is routinely collected from a donar?

Typically, between 450 to 500 milliliters (mL) of blood is routinely collected from a blood donor in a whole blood donation. This volume constitutes a unit of whole blood donation. The amount of blood collected is regulated to ensure sufficient blood volume is collected for transfusion purposes while not causing harm to the donor. Blood collection centers follow specific guidelines and procedures to ensure a safe and well-controlled blood donation process.