Author: David Zhang
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Smallest Probability of Infection During or After a Shopping Trip
When you go out shopping or bring in things you have purchased after your trip, have you investigated every step so that you have the lowest probability of picking up invisible germs? Here we will share with you things we do to minimize the risks. Depending on your own situation, you should examine your process…
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All Different Mask Testing Methods at Home
https://youtu.be/8mCPB8n065Y When you test filter materials at home, you may have different particles available to you to use or different equipment to detect the particles. Therefore one method may not suit all your needs. In this video I am going to show you 3 levels of particle filtering tests I have invented for your face…
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Custom, Tightly Fit DIY Mask With Easy Filter Replacement In 3 Seconds
Is your face mask effective? How do you test the quality of your mask, especially your own DIY masks?
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How Effective Is Your DIY Face Mask? Easy Home Test
https://youtu.be/25lDoBSsQG8 Is your face mask effective? How do you test the quality of your mask, especially your own DIY masks? Avoiding this question is unsafe and you cheat your own health. This is increasingly important when the experts are changing their strategies and asking healthy people to wear masks. You may think you don’t own…