Wearing a mask is mandatory for anyone going out. Some prefer face shields made of clear plastic. The question is whether shields should also be used along with masks as a better protection against the virus transmission.
According to studies, 90-95 per cent protection can be ensured by properly wearing a three-layered cloth mask and following physical distancing rules, but many find it hard to handle the mask. They pull down the mask to their chin while talking or when they feel uncomfortable. Some even use loose, misfitting masks. Also, people frequently touch the outer part of the mask and touch their nose, mouth and eyes without washing their hands. Some even reuse the one-time use masks while some don’t clean the cloth masks for reuse. This increases the risks of infection.
Shields are open on both sides of the face allowing the infection to be transmitted if anyone sneezes, laughs or talks loudly
Shields have a number of advantages. They cover forehead and extend below the chin. One does not need goggles and can talk comfortably. The user cannot easily and unconsciously touch the eyes, mouth or nose. Those feeling suffocated in masks can feel comfortable in shields. They can be easily cleaned and reused. According to research, shields ensure 96 per cent protection even if anyone talks, sneezes or laughs at a distance of 1.5 feet.
Shields have some disadvantages too. These are open on both sides of the face allowing the infection to be transmitted if anyone sneezes, laughs or talks loudly.
So, wearing three-layered cloth mask and following physical distance can be a better transmission control effort. The physicians, health workers, and law enforcement members, however, must wear shields along with the masks to ensure extra protection. People in the emergency services should also cover their hair with caps.