I recently bought a Dyson V8 and noticed the amount of air that comes out of the air filter while vacuuming. I have been contemplating buying a battery powered air duster and this got me thinking an adapter would make the Dyson V8 a pretty powerful air duster. 

It works great! Not the most ergonomic setup since you need to holder the Dyson V8 backwards, but boy does it blow some air especially on max mode.

To use, remove the rear air filter and replace it with the 3d printed part. It's a pretty tight fit as I didn't want it to blow away during use.

I think this is a great concept and would love for someone smarter than me to come up with a more well thought out and refined design. I thought about making it “screw on” like the original air filter does, but that's outside of my modeling skillset currently and this was something I printed to see if the idea worked. 

My simple Fusion 360 file is included.