There is no doubt that wearing a mask can help prevent the transmission of COVID-19. In fact, covering your face is the most effective strategy to slow the spread of the new coronavirus, according to a June 2020 analysis published in the Proceedings of the National Academy of Sciences. But can face shields defend you against the potentially deadly virus as well?
Should you wear a face shield?
In combination with a mask, a face shield could provide additional protection against the coronavirus. This is because face shields can create an additional barrier against large droplets , provide eye protection, and minimize how often the face is touched.
Although a face shield can offer additional protection, it should be worn in addition to the mask, and not one of the two.
Wearing it (in addition to the mask) can be especially helpful in settings where social distancing is difficult. People who frequently have face-to-face interactions with other people or those who work closely with populations with a high transmission rate of COVID-19 could benefit from wearing a face shield. In other words, frontline workers like healthcare professionals, grocery store personnel, and public transportation employees .
Based on current evidence, we still don't know how effective face shields alone are in reducing the spread of COVID-19. Although shields can protect your eyes against exposure to the virus, it is not yet clear if they can protect those around you from catching your germs.
Although face shields can protect against large droplets from a cough or a sneeze, we do not know whether alone they provide an effective barrier against smaller respiratory particles. Essentially, your respiratory spray can still escape the shield, and if you are a carrier of coronavirus, you can infect others.
What to look for when buying one? Key features
If you are considering adding a face shield screen to your personal protection arsenal, which one is the best to buy? Stick to shields that cover your entire face to maximize protection. Your shield should wrap around the sides of your face and extend below your chin.
Also, the face shield should be easy to put on and remain secure . A good fit will reduce the amount of mask fitting and putting your hands close to your face.
To ensure your safety and avoid accidental contamination when handling your face shield, follow these tips:
- Wash your hands before and after removing your face shield.
- Avoid touching your eyes, nose, and mouth when removing your face shield.
- Never use a disposable face shield more than once and dispose of it according to the manufacturer's instructions.
- Clean and disinfect reusable face shields after each use.
How to clean a reusable face shield
After each time you use a reusable face shield, you will need to clean it.
1. Gently wipe the inside of the face shield and then the outside with a clean cloth and detergent or disinfectant wipe.
2. Clean the outside of your face shield with water or alcohol to remove residue.
3. Allow your face shield to air dry completely or pat with clean paper towels.
4. Wash your hands with soap and water for 20 seconds.
