It was necessary to urgently buy a mask for oxygen therapy. As a result, the mask is a complete Chinese suck at a price 2 times higher than retail in Minsk. There are no hoses in the kit, but 2 antivirus filters were inserted into the kit at a price also 2.5 times higher than retail in Minsk. When asked where to get hoses, I don't know. And what do you know, gentlemen? My verdict is the dealers!