Vacuum cleaner dust laser - GIF

Vacuum cleaner dust laser.

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Previously:

https://www.homemadetools.net/forum/...382#post196590
https://www.homemadetools.net/forum/...223#post195926
https://www.homemadetools.net/forum/...467#post185564
https://www.homemadetools.net/forum/...919#post167862
https://www.homemadetools.net/forum/...290#post165685

Where or how did you do this? Looks handy and you need a UV version for a floor scrubber.

I swear my wife has eyes like that - she can see a speck of dust on the floor from the other side of the room, I can't see it when I'm standing right where she is pointing.