What do you do if all face masks are sold out at every single store? After the coronavirus (Covid-19) began spreading, there were soon no more face masks at any store. Restocking could take weeks. I will show you how to make your own DIY mask in 10 seconds.
What if the N95 masks are not available to you but you have a surgical masks? An N95 mask can filter at least 95% of airborne particles if you wear it correctly. A surgical mask does not effectively filter small particles from the air and does not prevent leakage around the edge of the mask when the user inhales. If you only have cheap masks, the biggest problem is that they may not fit well and there will be leakage around the edge of the mask. Since surgical masks are not designed to pass a fit test, I will show you how to make the mask fit if you don’t have access to an N95 mask.
We also proposed a couple of simple tests you can do to compare the effectiveness of different materials you have at home. We propose these minimal testing methods not because they are rigorous but because having an unrealistic sense of security by wearing a mask when it doesn’t fit well or being unaware of the level of effectiveness is also dangerous because you might then over-expose yourself to whatever it is you are trying to avoid. Be aware that having a false sense of security is dangerous. So even for a N95 mask, you need to wear it correctly and need to perform fit test.
https://twitter.com/RealGeniusAsian/status/1226302469719805953
After the release of this video, some friends asked us to convert it into Chinese so that their family can view it. We spent a day to translate, record and edit to generate a new video. Now you can view it at this URL: 英文版的关于口罩视频推出后，一些朋友要我翻译成英文的给家里的人看。花了一天翻译，录音及编辑现在 “中文版的自己动手做口罩, 如何改进便宜的口罩” 在以下链接：
https://youtu.be/mhjgtV_zQ-U?t=4
武汉肺炎全球口罩都卖光了，如何自己造，如何加强已有的普通的便宜的非N95口罩.