Don't know what to think of it, because in .de some supermarkets stock them, but you have to ask for them at the cashier. There they pick the amount you asked f

Don't know what to think of it, because in .de some supermarkets stock them, but you have to ask for them at the cashier. There they pick the amount you asked for out of a box, where every single one is in hermetically sealed bag. Because of theft, supposedly. Some did it always like this, some only in times of "high demand", like after wearing them has become mandatory in places. Even gas stations stock them here, though more expensive because gas station. Prices are anything between 65ct and 1.10€ in supermarkets, and upwards of 1.70€ in gas stations. All various chinese brands, no 3M or such. Though they have some certification prints/seals/QR-codes on the bag and sometimes on a paper leaflet in the bag. edit: we call them FFP2 here, btw.