Thought canned air was fine for dusty tower intakes until a customer sent back my work with photos
He said the dust just got pushed deeper into the fins and now his CPU fan was grinding two weeks after I serviced it. I bought a $40 electric blower and a soft brush, and the next three towers I cleaned ran 8 to 10 degrees cooler on idle. Any of you still using cans on heavy dust, or did you switch too?