DIY Cyclone Separator Claims 99.95% Dust Filtering

A DIY cyclone dust separator built from a 3D-printed design based on Oneida’s Air Super Dust Deputy claims 99.95% filtering efficiency after airflow-interference issues were addressed through multiple configuration tweaks.

There’s a moment every woodshop tinkerer knows: getting dust out of the air sounds straightforward—right up until you try to do it with cyclone separation instead of a filter. The promise is tempting, especially when filters get expensive. But making the air swirl, slow down, and actually leave fine particulates behind is where DIY plans often fall apart.

That’s the problem [Ruud] of the [Capturing Dust] YouTube channel set out to tackle with a new printable cyclone dust separator, built around a claimed 99.95% filtering efficiency. The target is simple: keep sawdust and fine debris from recirculating—without paying filter prices.

The starting point was the commercial Oneida Air Super Dust Deputy Cyclone Separator, a device sold for about $179 that claims a 99.9% filtrating rate of fine dust and debris. From that design, a 3D model was created and printed using an FDM printer.

But the first results weren’t the headline numbers people hope for. Initially, only about a 98% rate was measured. The gap, [Ruud] found during investigation, wasn’t the overall cyclone concept—it was the incoming and exciting airflows. They were interfering with each other, throwing off the separation performance.

After that, the build became more than a single print job. One tweak was made to add separation between the flows. Then came extensive testing of different configurations, until a final design was settled on.

With that redesign in place, the cyclone separator was presented as more efficient than the commercial option it started from—claiming 99.95% filtering efficiency while outpacing the Oneida unit’s stated 99.9% rate.

The story is ultimately about the unglamorous details that decide whether “cyclone” means cleaner air or just louder swirling. A few airflow adjustments—and a lot of configuration testing—can be the difference between a promising DIY project and one that starts to compete with equipment that costs real money.

The full process is shown in the video embedded at https://www.youtube.com/watch?v=vspF43frvKE.

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