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Dust Collector Filters: Clean or Replace?

Author: Lisa Frank

Published: | Updated:


If you have recently purchased a quality used dust collector, a brand-new dust collector, or inherited a dust collector at a new facility, it’s imperative to investigate the filter media to determine if it's best suited for your application, and to evaluate your maintenance cost.

πŸ’‘ Key Takeaway
Once a dust collector filter becomes depth loaded, replacement is generally a better option than attempting to clean and reuse it. Cleaning can damage the filter media, reduce filtration performance, and allow dust to reach the clean air side of the collector.

Cleaning the Filters

In dust collectors with pulse-jet cleaning, the system sends compressed air through the unit to remove the dust from the media of your filters. Most collectors will have this cleaning feature on a timer board, engaging after a sequenced time or during daily shutdown.

How Pulse-Jet Filter Cleaning Works
1
Dust Collects
Particles accumulate on the filter media.
β†’
2
Pulse Activates
Compressed air is sent through the collector.
β†’
3
Dust Releases
Collected surface dust is released from the media.

Once your filters become depth loaded with dust and particles, you will need to take the next step – the question becomes should you clean your dust collector filters or replace them?

Clean or Replace a Depth-Loaded Filter?
Attempt to Clean
βœ• Requires removing and reinstalling filters
βœ• Blow guns can damage filter media
βœ• Tears can allow dust to pass through
βœ• Depth loading may remain
Replace the Filter
βœ“ Eliminates depth-loaded media
βœ“ Reduces risk of damaged media
βœ“ Helps prevent dust from reaching clean air
βœ“ Saves time compared with cleaning and reinstalling

The majority of dust collector filters are constructed of cellulose/polyester, or a Nanofiber media. Once the cartridge is depth loaded, consumers have often pulled the filters and taken a blow gun to the media to try and clean/maximize the life of the filter. More than often, a tear in the media is created and upon re-install you start to see dust making its way into the clean air plenum and back into your shop floor. Long story short- it is better to replace the consumable filter rather than try to extend the life of the filter and avoid any possibility of the dust making its way into the clean air plenum and creating a dirty shop area.

⚠ Don't Assume Lower Pressure Means a Clean Filter
A lower differential pressure reading on a depth-loaded filter does not necessarily mean the filter is working properly. If the media has developed holes or tears, particulate may be passing through the filter and entering the clean air plenum.

Replacing the Filters

Replacing your filters will save you time rather than removing the dirty filters, attempting to clean them, and then re-inserting them into your collector. This act will take twice as much time than simply replacing the filters.

To ensure your dust collector functions properly and at peak performance, the filters need to be able to breath.Β  AirMax Premium Filters are manufactured to the highest quality specifications for any industrial dust collection system. With numerous filter sizes in stock at our facility, we ship most orders the same day!

You can also read our blog: Benefits of a Complete Dust Collector Filter Change Out

Contact usΒ today for a quote on replacement filters for your dust collector.

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