My mother, twice (not once, this has happened twice in a year and a half) using it all day long (without a mask only when she was in a ventilated room alone for eating and sleeping, etc.) for 7-10 days, COMPLETELY immunocompromised at that time, DID NOT get infected, with cases INSIDE the house (obviously with a very good mask fit, no gaps). I repeat, along with the cases for many days (it's just that masks don't work as some say). I don't think you can have such a good fit with another mask, at least on small faces (I think it's small for many men).

I won't say much as I have evaluated the same mask without the valve for those who are interested. The only difference is the valve, which you should know that it would be better not to wear this mask in closed spaces as all your exhalation comes out. So those around you are not protected. I wear it whenever I go shopping in crowded places (markets, Varvakeio, etc.) and before it was mandatory, as the difference in breathing compared to those without a valve is huge, no fatigue at all. If you only wear a mask in closed spaces, it is better to choose one without a valve, in open spaces this is the best choice.

It smelled very strongly of plastic, the tires were attached to the main body with staples. On the day I threw them away, the front 3M sticker came off and fell off, revealing a yellow piece of paper without me doing any misuse to the product.

I highly recommend it to you. I used it during Covid surgeries. While wearing my glasses, I had absolutely no problem. Clear breathing, perfect fit!

Quite a good mask, fits well on the face, but its design with two folding parts makes it difficult to put on. Personally, it puts quite a bit of pressure on me and I can't wear it for a long time.

Despite the increased cost of the mask, it allows for daily use for many hours comfortably and without problems. I wear 1-2 masks every day depending on my working hours. Ideal for use with myopia glasses. The protection is excellent, as during a meeting abroad in April 2020, when the coronavirus started, two colleagues got infected with simple surgical masks while I did not. And I didn't get infected even though we were together for another day, but I always wore this mask. Consider that a good espresso costs 3 euros.

I had bought it for 5 euros in an unsuspecting time before the coronavirus. To withstand the chemical attacks from the good boys of the police during protests.
It really saved me because I have respiratory problems and without it, I wouldn't have been able to stand. However, with the coronavirus, I had to reuse it after washing it first, until it was banned because it is a medical mask of type ffp3. Practically the best for 100% real protection - doctors in hospitals who handle Covid19 cases also use it, as far as I know. The product is for long-term use. If something breaks, it will probably be the elastic bands, especially for people like me with a big head.