Cleaning a camera sensor
This is a delicate operation, if you are not confident in doing this, it may be wise to consult a local professional (a photographer, for instance)!
This can be done in various ways and there are numerous tips and guides to be found on the internet.
We recommend first trying with and air-blower for cameras (not compressed air). These are small vacuum pumps with a rubber tip, to avoid scratches (but you should avoid touching the surface!). Blowing air on the sensor usually is enough.

There are also very soft brushes and swipes that can be used if particles remain.
These can pretty easily be found in specialised shops or on the internet.
