Do it in the bathroom after running a hot shower for a couple of minutes, the steam will pull a lot of the dust out of the air
Pro tip. I haven't used one either but my screen was pretty mashed by the end, some of that wouldn't have been helped by a protector but I figure I should at least try and keep this phone nice for a while.
@Polygon started
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Do it in the bathroom after running a hot shower for a couple of minutes, the steam will pull a lot of the dust out of the air