I have a protective film for iPhone, which accidentally stuck some dust to the inside of the film. Try it. Rinse it with water. It doesn't seem to work. Tens of dollars to buy, do not want to throw, ask for advice, what is the best way to dust off? And will not affect the adhesion of the film?
However, these work up to be careful, if you accidentally stuck to the adhesive surface may be wasted. In fact, the most important thing is that we clean the screen thoroughly before pasting it so that there is no dust on the screen and difficult to remove from the protective film. Wish you every success!
Is your product washable? If you can get down to water, and let it dry naturally, do not rub with a cloth or a fan blowing, this will cause the protective film from the dust; if not removed, you can use a transparent adhesive protective film, also can to a certain extent on the dust removal of the protective film.
Suggest selling it back from the new one! Because it's hard to remove dirt from the protective film! Unless you are using some brands of protective film, such as: 3M, OK8, HORI and so on. You can use water to remove the dirt on the protective film. More than 3 brands of protective film can be! Among them, 3M is mainly anti peeping film. HORI is an import brand in japan. OK8 is a domestic brand of protective membrane faucet! The quality is pretty good! But cost-effective or domestic brand OK8 relatively high. The price is proportional to the quality. Two of the other imported brands are too expensive. Cheap unless it's roadside goods, huh?