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Old 8th Jan 2022, 2:47 pm   #1
DonaldStott's Avatar
Join Date: Aug 2015
Location: Glasgow, UK.
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Default Compressed Air

I recently bought a can of 'Air Duster' from Essential Electronics but the pressure from this product is too weak for any meaningful impact.

I need something to blow fine debris/dust from the voice coil gap in a loudspeaker.

Recommendations please - need something with bit of oomph!
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Old 8th Jan 2022, 3:00 pm   #2
Join Date: Feb 2021
Location: Edinburgh, Scotland, UK.
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Default Re: Compressed Air

I have been using a Kennair Air Duster Kit (can + valve) for a long time to get dust off camera sensors. I have no way of knowing if this is better or worse than what you have.
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Old 8th Jan 2022, 3:06 pm   #3
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Default Re: Compressed Air

Put the can in hot water for a while, much more poooof...
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Old 8th Jan 2022, 8:07 pm   #4
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Default Re: Compressed Air

Short of using an air compressor and blow gun which many of us have, I have a friend who showed me one of these:

They are very powerful and relatively low noise units, many UK companies sell these.
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Old 8th Jan 2022, 8:26 pm   #5
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Default Re: Compressed Air

I would use a vintage cylinder vac that blows as well as sucks. I keep our 40 year old Electrolux for blowing things dry and spraying paint. You need to bang the hose a few times first to dislodge dust from it.
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Old 8th Jan 2022, 8:40 pm   #6
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Location: Newport, Gwent, UK.
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Default Re: Compressed Air

There is a portable electric one on Argos at 49.99.
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Old 9th Jan 2022, 1:30 pm   #7
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Default Re: Compressed Air

Originally Posted by merlinmaxwell View Post
Put the can in hot water for a while, much more poooof...
Yes, but only up to about blood heat. A very excessive temperature might result in the can bursting. blood heat is only about the temperature to which the can would be subjected during storage or transit during a heatwave.
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Old 12th Jan 2022, 11:43 pm   #8
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Default Re: Compressed Air

If it's just for a one off, one shot job, maybe consider using an inflated (spare) car tyre as your compressed air source.

It would need a certain amount of inventiveness to get the air to where you need it, but you could start with a tube borrowed from an old footpump and extend it, and have something like a flattened bit of metal tube inserted in the output end to give you an aimable 'jet' of air.
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