A standard disposable medical mask can be worn for only 4 hours and then you need to throw it away. But who can afford it now? It seems to me that it is easier to make a mask of fabric yourself and regularly change and disinfect it by boiling. Any mask helps to contain the spread. And in general, there is no need to add panic. Use medixcbd and breathe deeper)) And one more thing - do not watch the news so often - it is depressing on your nerves anyway.