To be effective, eye or face shield protection must be all of the following, except:

To be effective, an eye or face shield must be free of scratches; be resistant to penetration; allow clear views to both sides; fasten securely; permit air to pass through to prevent fogging; and allow room for eyeglasses or sunglasses, if needed.

• Able to fasten securely.
• Too tight to allow sunglasses or eyeglasses to be worn.
• Free of scratches.
• Able to allow clear views to both sides.