For those of you concerned about the multiplying scratches due to writing with the stylus or using the eraser on the other tip of the stylus my experience with the screen protector from Boxtoor might be helpful.
In addition to his instructions (
https://ereader.store/en/accessoires...xcarta-32.html) you should pay attention to a few details. It is impossible to achieve a 100% dust free environment at your home. The best choice is to apply the protective layer, in your bathroom after taking a hot shower, because steam binds most of the particles in the air. Because of the impossibility to achieve a perfectly clean environment don't expect to be able to apply the cover without any trace of dust getting behind the screen protector. The layer has a silicon film which traps any particle of dust or falling from your skin, even after a bath. Buy at least 6 protective screens because you will need to train your ability to achieve better results. In the best case scenario you'll do a good job with the third layer. Now let's enumerate the difficulties of the process:
1. Dust particles can only be minimised if you use antistatic liquids and cloths to remove in advance any dust trace from the screen, from the device margins and backside, from the surface on which the device stays (for example the toilet seat), and from the two layers adhering to the protective screen itself. Also use a powerful lamp to illuminate the screen so that you can check it.
2. Air bubbles can be eliminated if you take an hour or more to press them towards the edges with a plastic card, both while applying the protective layer on the screen and afterwards. After a few hours look again for the remaining ones and press them repeatedly out. In maximum 24 hours they should entirely disappear.
3. One or two particles will adhere between the screens anyway. Let one be if it is small, and in an edge where it is not easily visible. The particle will tend to gather a very small air bubble around it. Press the air as much as possible, but the final form will stay there after 24 hours, forever.
4.The 13.3 screen is huge for applying another layer on it. It is not comparable with your smartphone experience. Also the distance between the screen protector's edges and the screen's edges is literally 1 mm. That is why it is very difficult to fit the layer perfectly on the device's screen. An imperfect fit means that at one edge the protective screen "meets" the black margin and as a consequence does not adhere completely to the screen's surface. Don't accept this imperfection because air will always gather there, increasing with time the air surface between the layers and attracting dust from the atmosphere. The perfect fit of the layers is a must.
5. If you use to write or underline by pressing with a higher intensity, it is possible that you don't only scratch your capacitative screen, but also create small indentations on it. The air bubbles love to stick there. To prevent that you should press with the credit card firmly on the protective screen as you apply it. It is not easy to do that while concentrating on keeping dust particles out and fitting the layer perfectly at the margins. Even then, you'll have to live with some minuscule bubbles. The good news is that those bubbles as well as an accidental small dust particle far from the center are not visible under normal light conditions.
Ideally you should apply the protective screen right after you received the device and did not use it at all.
Making the protective screen perfectly fit in while avoiding dust particles is a real challenge. You need lots of patience, and protective sheets. I needed no less than 10! To my defense I'm not a really handy guy. Maybe most of you will do with only 5 or so.
Regarding the quality of the protective screen from Booxtor, I would say it is fine, although it is not so matt as described. Don't forget the cover has three layers, not two as Booxtor implies. Remove the third layer (noted as nr.2) after you apply the protective screen on the device. Otherwise the third layer will glare like hell and make your screen look terribly scratched.