Download or read book Covid-19: HOW TO CHOOSE MASK written by Dr. Timothy Zahar and published by Bs Lê Trọng Đại. This book was released on with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: INTRODUCTION In the past few days, I have received many emails from readers asking about "how to choose the right mask to protect the safety of you and your loved ones during the flu pandemic". As a doctor, I understand your confusion at the supermarket. There are many different types of face masks. And we don't know which one to choose: * What kind of mask prevents dust? * What kind of mask prevents bacteria? *What kind of masks can prevent viruses? Therefore, I am writing this small book to guide you on how to choose the right face mask for the flu. Content includes: 1. Types of face masks suitable to protect you from the flu virus. 2. Use respirator correctly to maximize the effectiveness of preventing the influenza virus. 3. Tips you can do right away to boost your immunity to the flu. I write this book based on answering the questions frequently asked by readers, so I believe it will be very easy to understand and practical to you. Thank you. Dr. Timothy Zahar