We also full-time and clean ours monthly as Bob suggested. It is amazing what little dust it takes to slow the air flow down. I have two sets so I pull the dirty ones out and replace with the clean set. Then I clean the ones I just pulled out and let them dry and ready for next month. I got the extra set from trekwood.
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Wayne & Joyce
2021 Montana 3781RL
2020 Chevy 3500HD
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