i just replaced my graphics card and was surprised to see how much dust there was on the fans in my pc case. so, went to a number of places (amazon, microcenter, etc) to look for cleaning tools.

what i'm finding are little vacuums for cleaning the keyboard such as

https://www.amazon.com/Precision-Vac...Vacuum+Cleaner

and

https://www.amazon.com/Computer-Desk...g+tools+vacuum

i'm also finding simple brushes like this:

https://www.amazon.com/OXO-Grips-Ele...62Q4AFEY37NMC7

do any of you think the vacuums would be safe to use inside the case? or should i rely on the brush approach? if so, can any of you suggest a specific "tool" for the job?

thanks in advance,

terry