The JVSCAM cordless rechargeable electric air duster is a fairly straightforward device. An internal fan spins at up to 13,000RPM to move an appreciable amount of air. A nozzle funnels the air into a tight, high-velocity stream that's more than strong enough to kick up layers of dust that's been sitting on top of your computer components. It has three speed settings, although I would recommend keeping it at the max speed for optimal results. You also get four different sized nozzles, including a narrow funnel for tight spaces like the crevices in your keyboard and a wider nozzle for AoE damage.
The best thing about an electronic duster as opposed to a compressed air canister is that it can be re-used. The dual 2,500mAh batteries lasts up to 240 minutes on a full charge (on the lowest speed setting). It can be recharged with a USB Type-C cable, which is included. I have a similar variant of this air duster that I use for all manner of cleaning, not just my PC (cleaning my coffee grinder and blow drying my dog are two examples). If possible, do your dusting outside.
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