There nevertheless has two films in the packaging. That says it all: the first time, it is impossible. I took every possible precaution to be able to ask the first film. The bubbles are not resolved despite a total lack of dust in the environment where I was. Normal ...
Second film? Properly installed! No bubbles! Except that the adhesive does not hold at all and that the film is peeled off alone. After twenty minutes.
Spend your turn. I know where I stand now.
EDIT: Anker me immediately a second copy of the article to address the shortcomings of the first! After receipt, I tried a new installation by multiplying precautions, as was done with the first article. The film landed the first blow, without catching dust and without peel; and we can finally say that my iPad Air is perfectly protected.
So I was the rating of this article from 1 to 4 stars.