Face Shields: Benefits, Protection, and When to Use Them

Face shields provide a transparent, full-face barrier that complements—but does not replace—face masks in infection control.

Key Benefits

1. Droplet protection: Deflects respiratory droplets (cough/sneeze) away from eyes, nose, and mouth.
2. Eye protection: Shields ocular mucosa, a known entry point for viruses.
3. Reduces self-contamination: Physical barrier discourages face-touching with contaminated hands.
4. Extends mask life: Protects the underlying mask from splatter, allowing safer reuse in high-exposure settings.
5. Alternative for mask-intolerant individuals: Those with severe skin breakdown, claustrophobia, or facial anomalies.
6. Communication aid: Preserves lip reading and facial expression visibility—critical in education, pediatric, and deaf/hard-of-hearing interactions.
7. Adjunct to distancing: Adds a layer when 6-foot spacing isn't feasible.
8. No fogging for glasses wearers: Unlike masks, shields don't direct warm breath upward.

Important Limitations

• Open at the bottom and sides—does not filter inhaled/exhaled air.
• Must be used with a mask in clinical/high-risk settings per CDC/WHO guidance.
• Clean and disinfect between uses per manufacturer instructions.