I bought a pack of protective masks from Migros last week and used the first one this week for a visit to the hairdresser (as a test). The quality of these masks is catastrophic. When I put them on, I immediately had irritated eyes, it seemed to me as if the masks had been sprayed with something (disinfectant or something else). Then I could only squeeze the (supposed) wire that you can press over your nose - it kept straightening and the mask slipped down and I had to push it back up countless times. This got so annoying over time that the hairdresser gave me one of her masks. I then cut the mask open at home and instead of the metal wire it was a plastic rod, which can't adapt to the shape of the nose. My conclusion: I find these masks to be completely worthless, somehow unhealthy and completely unusable in an emergency and therefore far too expensive at a price of 39 for 50 pieces. I would have gladly paid this price, but because the masks are worth nothing in my eyes, I am annoyed by this wasted money because they will end up in the garbage can.