Dusters - cleaning with them

Soldato
Joined
8 Nov 2006
Posts
7,836
Location
Ireland/Northern Ireland Border
I have always used compressed air canisters for cleaning and usually buy the ones OcUK sells.

I am selling some kit at the moment and in order to clean I popped out the compressed air. I ran out and ended up buying a replacement in a high street stationary chain. (The big nationwide one that doesn't have shops in train stations)

This compressed air seems to leave a damp residue if I spray for a couple of seconds so I am loathe to use it on any tech stuff. I used on the table first of all. Am I imagining things? Is it just condensation from the air? If it is does that make it safe?
 
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