WHO gave Corona Virus, a name that is Covid-19. Last week I have published a blog about one of the protection methods, that is wearing a surgical mask. In that blog I tried to cover different aspects of mask like What is a surgical mask?, Why masks are use?, What are standards for a mask to be acceptable and What is its effectiveness against Covid-19?. Many of my readers asked me to write about a way to test a mask on the spot or at least before buying in bulk. Therefore, I have decided to write a blog on how to test a mask. Now a days Covid-19, is the most scary thing every one is talking about. How it is spreading?, how to protect from it?, how to contain the spread of this virus? and Is there any cure or vaccine for it? These are the questions almost everyone…