Juraj Carmeli

Also, those PM2.5 reusable masks you link to from your site are absolutely useless against coronaviruses and it is dangerous recommending them to people. Of course, anything is better than nothing but they can give a false sense of security to those who wear them. They filter particles to the size of 2.5 microns. Coronavirus is 0.05 to 0.2 microns. There should be at least this information in...

Be very, very careful with the masks from China, especially those claiming to be made according to N95 or N100 standard. There are many companies in China manufacturing those masks, claiming they are N95 or N100 when in fact, they are fake. Just educate yourself how hard it is to actually manufacture them:...