To be effective, an eye or face shield 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.
- Prevent air from passing through.
- Not allow for eyeglasses to fit underneath.
- Restrict your vision to the sides.