Yes, certain electric air duster is used specifically for PC and keyboards.  You can roll up a small piece of paper towel to block the fans from movement.
Hello I have an older Inspiron 530S due for a cleaning. I just bought an electric air blower just for this, because disassembly seems to time consuming. Would an electric air blower, be safe? I ask this because I’ve used compressed air cans in the past, my concerns are the costs adding up, and liquid spraying out during regular proper use. I know vacuums are disliked. But this blows, not vacuums. - word was highlighted as an error. So is it safe to say this air blower would not damage any components? I have heard about holding the fan during use, to prevent electricity from flowing. The air blower arrives today, and the computer has been unplugged for about 2 weeks. Other than concerns on holding the fan, should I be good to go? I don’t want any other recommendations unless this method is terribly unsafe. My question is will this be safe to work with if I take caution?
How to clean dust - Inspiron 530S