My old Fuji S2 had been blitzed with sand/dust particles since a Queensland beach last year, there's also a battery fault so its relegated to being my daughter's camera now, having no intention of using cleaning fluid I put the camera in cleaning mode and locked up the mirror, I have a very soft lens brush, this I wiped across the sensor filters face then I inverted the camera so the lens mount was facing earthward and blasted canned air at the inside of the mount, contrary to what every manufacturer tells you, result, one really clean camera/sensor with no damage.
Saves me money and if my Nikons get dusty they'll receive similar treatment, its a glass filter we're cleaning here and as far as I'm concerned you cut glass with a diamond bit, not a squirrel hair brush.
I'm even more convinced now about the cons these companies have infected us with since digital came about, they rip us off with this stuff constantly, I'm swallowing no more of this garbage, I've cleaned camera internals this way for twenty plus years without any problems, this is how it stays from here on in. H