Problem statment: Dusting or cleaning ...sensitive electronic goods,
                  even some mechanical goods.

Example:  Dusting or cleaning a key-board of a computer.

          Porus surface ...say kind of covering for audio speakers etc.


Opportunity: Using a good paint brush [of appropriate size and scale]

                  .....I use a rectangular shaped one with fine bristles


How to: use the brush ...to dust the surface  ...by kind of painting 
        the surface.


        post the above use the sucction mechanism or the blower mechanism

        ...available in a vaccum cleaner ...judiciously


       ...to clean or keep your object of desire free of dust

          i.e. keep  it klean or clean.
