is anyone using the DataVac or similar for computer dusting? From what I've heard so far they're pretty good... I'm spending way to much on compressed air and am keen find an alternative.
Buy this. I own it and it's one of the shrew-est investments I've made for my computer. Watch the first customer review and you'll see a video showing how powerful it is. Just turn down your volume much lower because the video is initially loud.
Metro ED500 DataVac 500-Watt 120 volt 0.75-HP Electric Blower Duster
by Metro Vacuum
Link: https://amzn.com/B001J4ZOAW
Yes, it's noisy. Watch the video and you'll know exactly how it sounds and how effective it is. No, electrical discharge is not a concern with this unit.
Sounds just like a vacuum cleaner or a very powerful hairdryer, sounds powerful too. I could imagine the long nozzle is ideal for reaching into tight spots like the nozzle of a compressed air can? Wow have to get one. Cheers.