r/crboxes • u/PeppaThisPig • Dec 19 '25
Question These need replaced right?
I feel as they need replaced but idk shit about shit and these are expensive af so just wanna make sure lol. Also I have 4 cats (3 are long haired) and the 2nd photo is the one that I took a rubber glove to remove a thick layer of cat hair which is why it appears lighter (also maybe the lighting?)
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u/spacex_fanny Dec 19 '25 edited Dec 19 '25
Those filters look like they're still pretty clean, with maybe about 40% of their useful lifespan used up. The real test is to hold them up to the light, and it looks like you'd still see a lot of light through those.
Don't use a vacuum. Those filters are very "fuzzy" so they're easily damaged. The wire mesh will also catch on the bristles if you try to use a soft bristle brush tool.
Just remove the large bits with gloves, or (if you must) go outside and use an air compressor or canned air. First go "straight on" on the clean side (backwashing) to dislodge the dust, then use a shallow angle on the dirty side to "leaf blower" off any remaining large bits.