Plastic keyboard covers are useful for keeping dirt off a keyboard and they can be easily washed. Or get a keyboard that you can take apart and wash the keys.

Plastic keyboard covers are useful for keeping dirt off a keyboard and they can be easily washed. Or get a keyboard that you can take apart and wash the keys. If you are dusting your keyboard every couple of days, perhaps you need some air filters for your room as thats alot of dust to have build up in a couple of days.