Cheap extraction fan for spray booth

[thehomeengineer]

Hi All
I asked the question about advice on an extraction fan Advice on extraction fan .

while Trying to research on the internet if it was feasible or possible to use a blower fan, I stumbled across a bouncy castle blower on eBay for £25, and it was only 12 miles away. So I thought at that price and distance I would take a chance. Could always use it for a blacksmithing hearth if it was no good as a extraction unit. (Or buy a bouncy castle).
On my initial test I think it will work as the suctioning is great. Just need to get a suitable filter and some ducting. Please let me know if you can see anything wrong with this idea. I have a video of the fans suction below.

many thanks
The Home Engineer