Beautiful film with lots of bubbles

So, the delivery was great. Only the application of the film you would have in a dust-free environment at Microsoft to be ... have the display actually cleaned dust and grease but I had min. 7 bubbles where small dust grains were included.
Ok, then a try! Again clean, viewed from every angle precisely whether where what could be. Again the same result! I suspect that perhaps the dust particles on the adhesive side of the film were already ... Although glowing display the bubbles are almost invisible, they interfere with the more black. Well, again what learned.