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What Is the Best Way to Clean the Dust Collector Bag from Your Shop Vac
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Cleaning out Shop Vac Dust Bags Rather than shaking your dust bag, gently empty the loose dust from your dust collector's bag into a trash bag.

Q: How do you clean your dust collector bag? I have tried blowing it with high pressure air, have turned it inside out and used the shop vac, and beat it with a long screwdriver handle. The shop vac seems to do the best job. I do this outside since my dust collector is in a covered area outside.

A: When a dust collector filter bag is brand-new, its efficiency actually increases as it traps some amount of fine dust in the filter media. In the industry, we call this a “healthy cake.” Washing or vacuuming out a filter bag removes the healthy cake and retrogrades it back to a stage of cleanliness before it was the best filter it could be. In my shop, here’s how I clean my filter bags: I leave them on the machine, shake them vigorously (while wearing a particulate mask) and then empty the bottom collection bag as usual. I don’t feel that there’s a positive benefit, from a filtration standpoint, of cleaning the bag any more thoroughly than that.

posted on July 1, 2011 by Woodworker's Journal
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One thought on “What Is the Best Way to Clean the Dust Collector Bag from Your Shop Vac”

  • Todd

    Maybe put the top bag on inside out and turn it on. Then vacuum the reversed bag with something else like a bagless vacuum. ??

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