How to Significantly Slow Coronavirus? (featuring Minister of Health of the Czech Rep.) #Masks4All

!!!EDIT: We have added a new message from Minister of Health of the Czech Republic for other health ministers and governments around the globe.


Homemade masks are partly effective in individual protection, but they are essential for slowing the spread of the virus in the population. The main outcome of our studies was that they stop around 95-100% of viruses that people emitting by their breath, sneezing, and coughing. People are the most contagious first days without symptoms, that's why we need masks for all.

We have successfully tested the hypothesis at two main technical universities and it is highly recommended by a team of experts COVID CZECH under the coordination of the president of the Czech Technical University in Prague. The team consists of a virologist, epidemiologist, doctors with specialization in population protection, chemists, and physicist with specialization if filtration. This group is an advisory expert group for the Czech government in Prague. Now it is obligatory to wear masks in the whole country.

Please share and help to spread the key message that can save lives and slow the pandemic.

#Masks4All: "I protect you, you protect me."

  2. The first video "Masks and Critical Thinking ":
  3. A list of 33 studies confirming the effect of masks (many thanks to @Jeremy Howard): + Jeremy's amazing video:
  4. The whole story of how we changed one country, Czechia, in 3 just days:


Useful links

  • Tutorial how to do a homemade mask:
  • Another tutorial:


Scientific Studies


Credits (everyone was working for free on this project):

  • Authors: Petr Ludwig, Aneta Kernova
  • The main actress: Aneta Kernova
  • Animations:
  • Camera: Lubomír Krupka
  • Sound and postproduction: BeLoud Studios (Bojan Bojic)
  • The venue: WeWork Prague
  • Subtitles: