Top product as it meets FFP2 specifications. With two straps, it fits perfectly at the top and bottom of the head.

the best protection for work where you come into close contact with various cases
I keep it for about a week.

It is one of the best in terms of protection, according to studies that have been conducted. They have only a few minor drawbacks:
1) They go behind the head, so if you wear glasses you have to take them off to wear them. The positive is that they do not press on the ears.
2) For someone with a large nose (like me), they are slightly smaller than they should be for comfort. It's not that the nose doesn't fit, it just stretches the mask a lot, causing it to rise from the jaw.
3) The straps that hold them behind the head sometimes break.

However, the mask itself is so good and sturdy and effective that I haven't found any equals in terms of protection.

The best masks by far. The bottom part that sits on the chin is made to fit many sizes and shapes of faces. You adjust it according to how big your face is (meaning it fits small faces without being completely pulled down). The strap on the nose is ideal, it sits exactly where you place it without coming off, and it also helps the sponge to fit perfectly. Personally, I breathe much easier with this mask.

Positives: extremely stable, you immediately feel completely safe, no gaps from anywhere
Negatives: after about half an hour you feel short of breath, especially if you walk as fast as you can, one rubber band broke on the second use, it is not convenient to put it on and take it off

I bought 3 models of 3M masks to try (8810, 1862, 9320). As for the fit and comfort for speaking (I teach, so I talk a lot), I found it good but I prefer the 1862. After 2 hours of use, I got a headache because the straps were too tight. The marks on my face were also very noticeable. However, other colleagues with a similar head size don't have this issue, so I don't know if I just got a piece with tighter straps. Anyway, my glasses didn't fog up at all. Slightly negative is the initial "unfolding" noise to apply it. It's not a mask that you can easily take off/put on.

It does not come into contact with the ears. It is applied with 2 large elastic bands behind the head (one high and one at the nape). Extremely comfortable on the inside. Very good contact around the perimeter. Sometimes the chin may come out from underneath if you scrunch your face. But you can easily put it back in place.

The best! Maybe you will find it difficult to breathe through the masks, but ffp3 is not intended for general use, but mainly for professional use.

It does not fit in the ears as it has support cords behind the head. This particular mask is suitable for closed spaces. I have tried it several times on flights and felt safe. It does not hinder breathing.

I have a relatively narrow face and it fits me perfectly. I feel that it applies well without causing any pain or leaving marks

UNACCEPTABLE quality. The elastic bands are a joke, they break after a short time on all the masks I ordered. I ordered them to be of higher quality and from a reputable brand because I was going on an airplane trip and wanted something better. DISGUSTING.

The mask is very convenient even for prolonged use. It fits perfectly on the nose and mouth but allows for easy breathing. The elastic bands it has, although they make it more comfortable because they do not bother the ears, make the process of putting it on and taking it off a little more difficult. Finally, the price could be lower.

Excellent quality but small and tight. Although it fits me well and doesn't come off, it puts a lot of pressure on my face and nose, resulting in a headache after a while.

Very difficult to put on and very uncomfortable. The downside is that it is very expensive just because it has the brand name, while most of their factories are in China

The ffp2 9320 is a pain until you put it on correctly because it has straps that go behind the head and not on the ears. Breathing is very difficult, I can't stand it for more than half an hour before I start suffocating. In 20 minutes of going to the supermarket, the bottom part that covers from the mouth to the chin came off 5 times... Unacceptable design because to cover the nose and chin, you have to unfold 2 pieces that often fold back towards the mouth when you wear it and move even without speaking because it is a very small mask for children up to 12 years old.

The ffp3 9330 is better only in terms of breathing, which I will probably tolerate for 1-2 hours.

The highest quality I have ever tried by far. However, there should be a size grading, because this specific code is for small heads.

It barely fits on my head. While it is incredible in terms of quality, the nose is pressed if you want to hold both the chin and prevent it from moving. For an adult man, it is very tight, maybe it is more okay for women if they don't have a lot of hair

I think it is one of the best FFP2 masks I have purchased. It is smaller in size compared to others in the same category. Especially the flexible "sponge" that hugs the nose is a lifesaver for those who wear glasses as it prevents them from fogging up.

Update:

After about 2 weeks of use, I can say that although they are well-made, the bottom part does not fit well, resulting in a feeling of being unprotected. It seems like it doesn't fasten properly under the chin, causing the air to not be filtered through the mask when taking a deep breath, but instead entering directly from the bottom.

We are talking about 3M. Obviously, it is a guarantee of quality and construction.
It is not for everyday use due to the cost. That is, if I am going to the oven, I will use regular surgical masks. But for places that unfortunately will have a lot of people like in public transportation, a supermarket, or a hospital, they offer security.

After a year of using various masks (fabric with activated carbon filter, simple surgical and KN95), these are truly the best! Very good fit and without any gaps anywhere. I bought 10 to start with and will definitely buy more.

High-quality mask that makes you feel protected! Its fit is perfect without leaving any gaps, which is very important. I think it's one of the best choices to feel safe!

Flawless quality and very effective for protection. Unfortunately, its size does not cover large faces, like mine, resulting in it slipping off when I speak. I highly recommend it for women, but for men, I would draw attention to possible inaccuracies in its application.

Awesome mask, extremely comfortable since it has a "sponge" on the nose, which also functions as insulation. The best one I have tried, with a 3M guarantee.

Although it does not have medical approval, it is great for everyday use, for non-health professionals

The best ffp2 by far. It fits perfectly on the nose and overall on the face (keep in mind, I have a long face and a big nose). It also gives you the feeling of a sturdy mask that filters very well. Use such masks when entering public transportation, supermarkets, banks, waiting areas for public services, etc. Fabric masks only save you from fines and surgical masks are only effective by 50%.

It is clearly the most comfortable mask one can find. Perfect fit, no fatigue, glasses do not fog up, and very, very comfortable breathing for a mask without a filter. I have even done exercise with it, easily climbing 5 flights of stairs while wearing it, etc. Surgical and fabric masks are clearly more annoying/restrictive (and the funny thing is that they don't even provide protection).

My favorite mask, it is not suitable for those who complain about masks in general. It gives me a sense of security, and its materials are very high quality. It is not suitable for long walks.

For FFP2, quite convenient and easy to breathe. It holds behind the head and not on the ears, so the ears don't hurt.