One of the most low-tech but effective products we saw at CES this year was the Cyber Clean. It was marketed as a keyboard and desk cleaner but can be used to clean any item that may have hard to reach crevices such as auto air-conditioner vents, printer buttons, phone keypads.
Just apply the Cyber Clean blob directly to the surface to be cleaned and pull up. All dirt and particles are absorbed by the blob and it can be used over and over again. Once the color of the blob becomes darker then you know it’s time to throw it away.
We applied it to our keyboard and after a couple uses the keyboard surface free from all dust and particles.