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

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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