Air-Filtration Systems

You can’t help but create airborne dust when cutting or sanding wood. It’s the pesky side of woodworking, the fly at the picnic. And that’s where an air-filtration system comes to the rescue. This machine, typically suspended from the ceiling, draws dust-laden air into the front of the unit and through one or two filters, exhausting (hopefully) clean air out the back. To help you find one that works well, we tested nine models head-to-head. We also threw in a common shop hack: a $20 box fan with a $20 furnace filter. The results might surprise you.

Airflow starts the process

Use an air-filtration system as a supplement to a dust collector and shop vacuum that collect debris directly from the machines and tools that create the mess. Do not rely on one of these units as your primary source of dust collection.

Before one of these machines can filter the air, it must first suck in the air. Lots of it. To measure airflow, we took readings at the intake filter in 12 spots using…

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