The Health Promotion Bureau says that using a face shield without a face mask is not enough to protect against the Kovid virus.
Below is a detailed note made by them.
But the protection that comes with wearing a face shield is to prevent germs from spitting directly into the face of someone close to you.
In case you find it difficult to maintain personal distance, you may want to wear a face shield in addition to a face mask to prevent spit drops from falling directly on your face. In addition, the use of a face shield can be recommended to prevent dirt from falling onto the face mask. This helps to protect the face mask, especially for hospital staff who frequently deal with patients with symptoms such as cough.
But it is never advisable to use a face shield as a substitute for a face mask. Wearing only a face shield without a face mask does not provide the desired protection.
There is another point that needs to be emphasized when discussing this. Wearing a face mask is just one tactic we use to protect ourselves from this epidemic. Wearing a face mask alone does not provide 100 percent protection.
To minimize the spread of this epidemic, it is equally important to use such safety precautions as to avoid crowded places and to keep your hands clean at all times.”
