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UNSW: Use Protective mask to minimize droplet dispersion & aerosolization

COVID-19 is a new global problem with health. Unfortunately, you can be infected with the coronavirus, but not show symptoms. So you cannot identify an infected person just by looking at them. And you may be infected (and infectious) but not know it.

In the July, 2020, the University Of New South Wales (Australia) conducted researched the degree of protection the medicine masks (2 and 3-layers and surgical mask). They use LED lighting system and a high-speed camera, took videos of people talking, coughing, and sneezing.

This experiment revealed that a surgical mask was the most effective one at blocking droplets and aerosols when the person was either talking, coughing, or sneezing. 

The surgical mask is not available to the common person. But if you can’t find one, “a cloth mask is the next best thing”. And obviously, the more layers, the better.

We recommend to pay attention to the protective mask from the assortment of products of our company:

UNSW advises the following:

“We acknowledge it’s difficult to sew together 12 layers of fabric. But there are steps you can take to make cloth masks more effective. You can:

  • increase the number of layers (at least three layers)
  • use a water-resistant fabric for the outer layer
  • choose fabric with a high thread count (so a tighter weave, for instance from a good quality sheet is generally better than a fabric with a looser weave that you can clearly see light through)
  • hybrid fabrics such as cotton–silk, cotton–chiffon, or cotton–flannel may be good choices because they provide better filtration and are more comfortable to wear
  • make sure your mask fits and seals well around your face
  • wash your mask daily after using it.”

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