The Czech authorities have issued a decree according to which residents of the republic from February 25 in crowded places must wear two masks at once. This is written by Ceske news.
The country’s Health Minister, Jan Blatny, explained that instead of two masks, it will be possible to wear respirators without an exhalation valve, which has a degree of protection of FFP2 or KN95. Other means with an air filtration efficiency of at least 95 percent are also allowed.