Dust-OffWhy a duster has to stay upright
A can tipped past a certain angle stops spraying gas and starts spraying cold liquid. Here is what is going on inside the tin and how to work around it.
Bench notes
We wrote short guides on snapping the trigger tab, holding the can upright, fitting the straw into seams, and knowing when a cloth does what the gas cannot.
The tab under the trigger
A new can whose trigger will not budge is not a faulty can. There is a small plastic lock fitted at the plant, and it has to come off first.
What is actually inside the can
It is not air, and the difference explains the cold tin, the fading stream and why the can never feels empty when it is.
Short bursts, and when the straw earns its place
The two habits that separate people who get a lot out of a can from people who empty one on a single keyboard.
When a cloth beats a blast
Gas moves what is loose. Everything else on a screen is stuck there, and no amount of stream will change that. Knowing which is which saves the coating.
What to do with an empty can
How to tell an empty can from a cold one, how to make sure it really is empty, and the three things never to do with the tin afterwards.