How much blood purify in one hour a man?

On average, the human kidneys filter about 50 gallons (approximately 190 liters) of blood per day, which translates to roughly 2 gallons (about 7.5 liters) per hour. However, it's important to note that this filtering primarily involves the regulation of fluids and electrolytes, and not all of this blood is "purified" in the sense of removing waste products. The actual amount of blood purified can vary based on individual health and kidney function.