Complex sentence: Bouffant surgical caps are perhaps the most widely used scrub hats in hospitals, and their usage is not limited to only nurses and surgeons: hospital patients are required to wear a bouffant cap when having surgery of any kind.
Split into simpler sentences: Bouffant surgical caps are perhaps the most widely used scrub hats in hospitals, and their usage is not limited to only nurses and surgeons. Even hospital patients themselves are required to wear a bouffant cap when having surgery of any kind.