Hi, I See That The Question Has Been Asked Before

Hi,
I see that the question has been asked before but I cannot find the answers!
Why do I sneeze when at my computer. I have exhausted the factor of dust; could there be some other element being given off from the computer? When I open the office door in the mornings, there is a distinct smell of "electricity!". I know that sounds ridiculous but I cannot think of a better word; it is rather a pleasant smell, like a new book.