Portable Barrier also comes in the category of Sneeze Guards. As per their name they are very portable and have some extra features for making them unique and extra beneficial.

There are four groups of vaccines in the clinical trials. Some of them tried to smuggle this antigen into a body, others are using the body’s own cell to create a viral antigen. Reference: https://allinlist.com/2022/09/01/how-the-four-sorts-of-covid19-vaccine-works/

A single germ can transform into millions of germs in a single day, so they are very harmful to us. These screens were in demand after the pandemic of Covid-19, so they were also known as Covid-19 Screen