You have to shake all the dust off the screen which is difficult as the room you are sitting in is covered in dust. However, you should be able to remove most of it and use the sticker that came with it for the rest. Just remember to use a light touch or the sticker will leave a mark! Also, be aware and accept the fact that you most likely won't burst all bubbles no matter how much you scratch them. I covered 3 screens and am very happy with the results. I will definitely buy this product if I need it again.
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