To be effective, eye or face shield protection must:

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.

• Fasten securely.
• Restrict your vision to the sides so you can focus on the road ahead.
• Not allow eyeglasses or sunglasses to be worn.